How to make good decisions faster?

As a lower rated player, I can safely and accurately say not all of my moves are of the best quality, but I can make fairly good moves when given enough time. However, during blitz chess, or even standard, when I get low on the clock I can't think straight or even get half decent moves in on time, so I have to ask...

How do people think of long variations within seconds, and accurately at that. I just don't understand it. Here are some examples of how my play differs when I have a long time to think and when I'm under time pressure (even 20 seconds is too little for me...)

Here is a 30-0 game that I played. I think I played pretty decently in this, even if I did mess up a few times:

Here is a 5-0 game where I had a clear advantage early on, and just began to blow it when time pressure kicked in, I couldn't even acknowledge OBVIOUS threats, but even if I did, I wouldn't play accurately from then on. I'll annotate the point where I began to be under time pressure:

I agree you knowing what you did wrong doesn't always explain why it was wrong. You should do self analysis whe your games end.

thnx

Thanks Qablo and Hubabu :)

Also, would you recommend computer analysis AFTER you finish analyzing your own game?

This happens to me too often. I play 30 or 45 minutes games and most often I end up with anywhere from a second to 2 or 3 minutes 20 or 25 moves in. Then I end up blitzing the late midgame to endgame. Sometimes this works (as in the time I played 30 straight moves from a drawn midgame against a 2100 with 1 second on the clock and drew) and sometimes it doesn't. I guess practice helps?

Pattern repetition.

How much time do you need to find your way home when you're in the neighbourhood ? What would happen if you were in Paris ?

Finding your way on the chessboard requires a blend of familiarity and thinking; the proportion depends on your experience and training...

Interesting analogy...