You really ought to post the bad beats to determine if they really are bad beats. Most situations are clear cut, but I Think a lot of times there's a level of mis-play where you may have paid off a bad call making it "not" a bad beat.

The biggest reason that Bad Beats are so expensive? Because they effect you long after then had has passed.

Also. When you only have 100bb in front of you, getting stacked with top pair top kicker is a lot more acceptable than when you have 350bb in front of you. Getting stacked like that is a HUGE no no.