Bankroll is a sacred matter for the player.
Once I lost it, I do not want it anymore.
I know the basics of poker, but I still limp in discipline, patience and so on.
When playing in a live game watch the other players. When you're not in the hand don't socialize, etc., study your opponents. I picked up a tell on a player such that I always knew when he was bluffing, or at least had a weak hand; I was able to use that for years against him. I have seen some subtle things that helped a great deal simply by paying attention.
The best advice I ever received was: The chips you save are nearly as important as the chips you win in Poker. Don't be a player who calls anyway when your instincts are already telling you that you're beat. Listen to that first little voice in your head telling you what the situation looks like. More often than not, it's right! Trust your mind's ability to sense situations and watch your bankroll grow.
that even if you played the game and have done everything right. watched your position betting applied all math right and all the odds were in your favor they are still odds and you can always lose,
The best poker advice I have received is to make a good management of my bankroll.
really doing good bankroll management is very important and maybe the best advice you can receive.
By performing a good bankroll management you will help to have patience against those bad times.