The first thing to focus on is to not blunder. So doing some form of blunder checking is essential. The second thing is tactics, tactics, and you guessed it more tactics. Tactics and blunder checking are related, so working on both will help improve the other. These are the most important things to focus on. Doing the puzzles on this site will help you get better at tactics, and you can always get a tactics book to improve your tactical ability. Doing puzzles and tactics books will help you see tactics in games, and increase your calculation ability. Here are some resources on tactics, and blunder checking:
Chess Vibes Blunder less Video
Chess Vibes Why You Keep on Blundering
Chess Vibes Beginner to Master Hanging Pieces Video
Chess Vibes How to Solve Puzzles Video
Chess Tactics Definition Article
Chess Vibes Beginner Course Playlist (Videos 3 (if you don't know the numerical value of the pieces already) and 10, 11)
After Tactics, and blundering there is the endgame. For the endgame you should only focus on learning the overkill mates, and be able to do them in time pressure (ie. either in less than 30 sec or less ideally 15 to 20 sec, but 30 sec is a good goal to start out). The reason for this is because you have played almost a whole game you could easily be low on the clock. You want to win your won games, and knowing these is the first step. Also at your level no one will known more advanced endgames so there is no need to learn them at the moment. Also all your games will typically be with one player having a significant material advantage to checkmate a typically lone king. So this is why you need to learn this first. The only other thing to be concerned about at your level in the endgame is to focus on learning the principles of the endgame. No need to learn king and pawn endgames or more complex endgames until you reach at least 800) Here are some resources to learn these:
Two Queens, Two Rooks, Queen and Rook vs King
Chess Vibes Endgame Course (Videos 1-5, 7, and 15 (3 and 4 are optional due to the rarity of having to checkmate with just those pieces))
The opening is next. You don't need to study openings in depth at your level. At your rating you don't really even need to choose which openings you want to play. What you really need to do is learn the opening principles, and work on applying them in your games consistently and well. If you want to choose an opening you can there is nothing wrong with that just not necessary at your rating (if you do choose to then choose one for white, and two for black (one against 1.e4 and the other for 1d4). The other thing is that no one at your will play what is called opening theory (the moves that are suppose to be played) properly. So you will be going what is called out of book (when you are not playing any variation of a particular opening, or in not very good variations) early every game, and be on your own. This is why learning the principles is so important. In the opening there is three things to focus on at your level, and they are 1. opening principles 2. Tactics 3. Not blundering. Focusing on these three things will help you get through opening in any game into a playable position if done well (even against much stronger opponents). If you do choose to play a particular opening then learn why you are supposed to make certain moves, and what are the goals of that particular opening. These are going to be rooted in one of the three things you need to focus on like 90% of the time. I will includes some resources on the opening phase to help you improve in the opening:
Chess Vibes Beginner Course (Yes again, this time videos 4-8, 12, 13, and 17 (7 and 8 optional they go over specific opening you can choose to play if you want)
Chess Vibes How to stop early Queen Attacks
Chess Vibes How to Crush Bad Opening Moves
Chess Vibes How to Stop Opening Traps
Chess Vibes How to Take Advantage of Opening Mistakes
Chess Vibes How a Chess Mater Learns a New Opening
These are the main areas, and what to focus on in those areas. I will also include a couple of more resources to help you in your improvement:
Chess Vibes Beginner Course (Yes again this time videos 15 and 16)
Chess Vibes Tactics/Strategy Playlist ( Videos 1-3, 21, 30-32, 34-36 Okay this is a big playlist and most of it will be above your skill level at the moment. You watch the other videos if you want they are good and can be useful).
Try Your Hand at Planning Article
How to Evaluate a Position Article
Here is my analysis of a couple of your games:
Hopes this helps.
Hey, would love advise on what specifically to focus on, started playing chess a few months ago
, I know im a rookie, pls dont grill me too hard, the game is supposed to be fun at the end of the day!!