Me, again

Let me know if I'm starting to be a pest lol.
I play in small live tournaments 2 or 3 times a week. $20 buy-in, 15-20 minute blinds, $20k starting stacks, between 15 and 30 people. The blinds start out at 100/200. Pretty much the exact same crowd with maybe a few new people thrown in here and there. I actually run one of them which I don't think necessarily helps my game. But here's my problem:
I'm never really the big stack! As I mentioned in another post, I seem to find myself at the mercy of the blinds, which eat up my stack, so I always get to the point where I'm the short stack. There are people that play who always, at some point, accumulate huge stacks compared to everyone else. Now, they are prone to giving the chips away as quickly as they acquire them.
I never seem to go on a tear where I'm hitting everything in sight. I'm not really superstitious . . . one person can't really be unluckier than another, long term, can they? The problem is that I feel like being short-stacked limits play a little bit, especially in terms of reraising and stuff. It makes it more hazardess to act on my reads because if I am wrong or they catch up, it's costing such a higher part of my stack or knocking me out of the game. And it's harder to put significant pressure on other players if they out-chip you. Sure, I last longer than the crazies but that doesn't mean anything if I'm not cashing.
So, what say you?

I want to be big and mean and dangerous, too!