[phosphorescence]

hey, i've realised that while my tournament play is pretty good, i stink at heads up. today i finished 2nd in two 90-man tourneys.
one of them i reraised all in pre with K8s against an aggressive player who turned over 99, and just now i pushed pre flop from the button with A4 and ran into TT.

i think part of my problem is i don't slow down enough when it gets to heads up, but i think i also don't have a good enough knowledge of how to play certain hands heads up.

for example, with the A4 v TT thing, the blinds were 5k/10k, and i had about 135k in chips (he had about 165k) - should i be pushing here straight off the bat, or should i be raising to like 30k and then folding to an all in?

i appreciate any help, as would my bankroll!