I agree with scrawnybob. you've got to have a larger bankroll behind you to be able to re-buy, to be able to play loose, to be able to put the tough decisions on guys like you who play with scared money or just to fight another day.
to see what i mean her's an example: so it was a ring game and i was sitting with K

J

in first position and flop came J

9

4

.
so i bet half pot and get a re-raise from a much shorter stacked player which i didnt have a read on but having him covered i easily re-raised him for all he had. having a proper bakroll means also that any hand under the "nuts" is going to be folded by him.
He called me there and flipped over the J

9

, but again- any hand under it would be folded, and in anyway i had my outs to outdraw him on the turn or the river.