85 SNGs done

3 $20+2 - 1 3rd 2 busts 7 $10+1 1 2nd 1 3rd 5 busts
pretty bad
I need to think of a change in strategy
what I am doing wrong
1 - making some bad calls
2 - playing for the money too much and too tight around bubble time
3 - just playing my own hand - not thinking about opponents - not bluffing enough
4 - not accumulating enough early on
5 - not reraising enough when I think I may be ahead
solutions
1 - don't worry about being bluffed - don't call overpot sized bets - in an attempt to make heroic call
2 - defend blinds more around bubble time, be prepared to race
3 - try and win every pot in - bluff more
4 - limp with more hands
5 - not allowed to just call - reraise or fold - especially one <20 blinds