Hand 1: This is a fairly easy fold based on how many people in the hand with you combined with an all rag (set friendly) board. This could be compounded by who is making the raise.

Hand 2: You are re-raising, and playing for stacks here, unless sb is a very tight opponent who doesn't semi bluff a lot, and seeks cheap showdowns with hands like KQ that hit a pair. You have to consider a wide air range from a lot of opponents, because of positioning, and a live draw board.

Hand 3: Well played, but I think you can check raise all in sometimes on this turn and have enough equity.

Hand 4: Bet the flop straight out, play accordingly. Your hand is vulnerable, and players at this level aren't good enough to get tricky with. Fancy lines are weak lines against non thinking opponents.

Hand 5: Play for his stack. This is basic stuff. His wider shorty range mixed with the fact that he can only take 1/4th a buy in from you is reason enough to continue with one of the top hands in hold em.

Hand 6: Raise the flop, and the entire hand changes.

Hand 7: Raise preflop, and the entire hand changes. You're not being aggressive enough early in hands.

Hand 8: Well played.