If you identify a good don't play untill you will see an better move that will give your game advantage
see as many games you can see of that people who are mostly 200+ rating then you
by seeing the game you will understand some tactics
never resign in mod games
you don't know how your opponent will make blunder
Learn your mistakes if you make that only you will never learn
You are right at most points except this one. For your first line you should play the first good looking move you see in blitz or bullet(not rapid or longer time controls and then you can start looking for other things) because you should not waste time, it’s better to get a fine move then to blunder because of low time. Thx for the info btw, the rest is good.