My endgame was always a problem. I then joined pokerxfactor and watched videos of end game. You need to be aggressively restealing from the loose players who open to often. I use push bot charts when I get down to 15BBs. Check out charts at
http://www.pokershove.com
These tell you when you can jam and when you should call an all in. At the end of the day you need to get lucky at the end.

heres a tip..I read it in a magazine few days ago... hope it helps.

A good player knows how to out-play players that are just there to "enjoy" playing the game. Players like these will limp-call preflop with speculative hands like suited connectors or any two Broadway cards, and raise only with strong hands like A-A, K-K, or A-K. It makes it very easy for a good player to make the right decisions against them, since the way they play contrives to give a way a lot of information about their hand.