Fixing leaks after 800 hands at .50$/1$

I deposited 500$ at Pacific and Party Poker and played 805 hands at .50$/1$ Limit. My stats are:

Profit: -3BB/100H
VP$IP: 22.48%
VP$ISB: 44.49%
WTSD: 32.92%
W$ASD: 51.9%
W$WSF: 29.17%
RPF: 7.33%
Agression Factor: 1.9/1.62/2.38 1.92 total
Check Raises 0.96%
Folded SB to steal 75%
Folded BB to steal 57.14%

What should I focus on first to improve my play?