Thinking proces

Ok, so I'm in a chess club since september and I try to learn by playing long games. After the games I run them trough some analysis first by myself and then by an engine. I also try to ask some advice from better club members. I'm losing a lot of games in this first year against much better players wich build up their positions with precision and always control the  game but against lower rated players that I should be able to win I also lose. The advice I get most of the time is to play slower. I  read up on chess books and play some tactics exercises but I don't have time to do like 50 excercises a day. 

This is an example game with a winning position for black. (I was black, and I just couldn't convert.)
I didn't expected the queen fork and thought I woud lose at least one knight. So I searched for something forcing = the bisschop check but I also took with the bisschop (forcing) wich was a big mistake. I should have taken with the knight many good posibilities after that.

Also I don't have much experience with the Englisch openings so I didn't have theoretical knowledge of the opening so I just tried to make logical moves.

How can I or should I adjust my thinking proces so that I can play slower ( but also can check more variations (= my biggest working point) especially in critical positions. My longest thinking proces was when I made the b2-b4 pawn move. Could have played the white bisshop first but I thougth my development was complete so I could attack. But It went downhill after that. After I lost my knight my head went down and the game was over. 

Thank you but I still lost because of my thinking proces wich is just not deep enough. Are there excercises that you can do that learn you how to think deeper ? How to learn to Look up more variatons ? I play to fast but often I think that even if I had thought about the bisschop capture on d2. (Bxd2) longer, I would still have chosen this move. Maybe it's just inexperience but I really have to correct this If I won't to have a chance at club level chess. 

If you're talking about depth of calculation, you want to be calculating all of the checks , captures , and threats you and your opponent has before moving. I find that threats are usually the hardest for people to see because they are the least direct, the move in your game Qd5 was an example of that. An effective way of scanning for threats is to look at all the moves your opponent has that advance on your half of the board (like Qd5) as its a common theme for threat moves (this can also be used to check for advantageous threats you make yourself). Now obviously not all threats fall into that category, but most do. Some of it is just pattern recognition which will come with time, tactics training can help with that.

Also let me add that when you're calculating, the goal is to calculate each individual check, capture, and threat  till the "point of quiescence" as its called. This basically just means until there are no more forcing moves left (checks, captures, threats).  I'll try and give some examples from the game you just posted. 

There isn’t really anything wrong with ...Bxd2+, Black retains an advantage. The big mistake was 13...Bb7 which just gifted him a free piece (13...Nxd2 and if 14.Qxc6 Bd7)

For me it was just solving puzzles. Because very often I'd calculate one series of captures, I'd think it was good, but then the solution was a different move order. So you fail those over and over and you eventually get used to checking a lot of different moves.

There are also common situations you see over and over... such as two pieces under attack (white's 11th move). In those cases, the way to escape is to create a bigger threat (often a check or threatening their queen). In this case you could have captured on d2, which is another common way to "escape" a double attack.

Those are the 3 basic moves you should always calculate: checks, captures, and threats. It takes a long time to develop good habits though, so don't beat yourself up over it.

IMO books are better than online puzzles, because some low level puzzles online aren't even puzzles at all  (like capture the undefended piece).

Yeah, pretty much what llama said. Although in checking your profile oliver I noticed that you have 2000 blitz games?! I don't have nearly that many even counting all games ive played on any different site etc... The general consensus is that playing too much blitz can hurt your chess, especially for lower rated players. I think you need to stop the blitz altogether and play some 15+10 games instead when you do play online, I think it will prepare you for the club games much better and overall improve your game more.

Thank you for your advise to all. It's definitly thru that I play a lot of blitz games and it effects my over the board play/thinking a lot at club level. Especially if my opponent also plays fast.  A lot of club members have come to me and tell me that I play just to fast. Some get even frustrated. I'm in the proces of handling this problem though. It makes the deep thinking proces harder for me. As a commuter i often play blitz and even the daily chess moves are made commuting... Bad habits I guess. Maybe I should switch to chess puzzles and indeed some 15+10 games of longer. Are there any good chess puzzle books that you recommend ? 

Doing puzzles during the commute would be a great idea, and my guess would be simply switching all of the commute time from playing blitz to tactics puzzles would improve your rating quite fast.

Daily chess, while good, I actually wouldn't recommend for players trying to develop tactical skills (which I think is the area you need to focus on) since it is allowed to use an analysis board, and opening database, which can be a crutch for lower rated players. The shortest time control for a game you should play from now on if I were you would be 15+10 ( and actually using your time, so many of my 15minute games are basically blitz games because my opponents move instantly).

As far as puzzles go, pretty much any of the sites will do. Issue is chess.c limits you if you are not premium, so you will need a different site (which I think I can get in trouble for mentioning other sites?) I recommend you use the lichess app and go through all of the (everything including the intermediate tactics and pawn endings section) "practice section" which includes things like basic checkmates and tactical patterns. Once you are done with all of them you can use the "puzzle" mode which is similar to this website's tactic trainer , it will give you puzzles based on a puzzle rating.

Tldr - dont play blitz, play 15+10 games at the shortest, do tactics instead of playing blitz games during your commute.

Dan Heisman: Back to Basics (a tactics book)

or

Yasser Seirawan: Winning Chess Tactics