just because you bust does NOT mean you misplayed your hand.
Look to post trouble hands in the HA section with the stack sizes you mention.
In general, open raising becomes a little tricker but still fine. 3bet jamming becomes a really good weapon to have, and look for open push spots when you get to 15bb and below as a general rule.
But it's not that much differant from playing any other stack size, you just need to be aware of the differances and keep in mind if your stack and the tables stack size is around 15-30bb there will be a decent amount of 3betting going on. Obviously lowering raise size helps us with a lowering stack size too. So if you raise 2x and bet 4x on the flop it's around 6-8bb out of 20-30 which is pretty sizeable, but vs a decent amount of players it may be worth it, but the key is really giving up on flops that hit the opponants calling range preflop hard, so we bet only when we havea really good probability of taking it down and it should still be very profitable move.