dont draw to lose.
if the board is paired, dont chase flushes. that kind of stuff.
I took a break from sit n go and play nothing bot 1c/2c PLO for about 6 months. I know that sounds terrible, but it was actually profitable and I had a good time. There was a group that used to play almost every night on UB.
Stay away from Limit Omaha high, it is evil.