3 tournament hands

[Roy__Batty]

it's a satellite. It's PLHE (I more used to nlhe but well, must not be that different)
9 places to the main tourney.
10th to 15th get money

*****First hand*****
9 players on my table

UTG+1 (Hero): 8000T with 66
UTG+2: 12500T VPIP=35% PFR=11%
Button: 20000T VPIP=32% VPIP=3.2%
Blinds 200/400

Average stack is around 12000T.
30 players left.
I limp
UTG+2 raises it to 1200
Button calls
I call 800
I'm not sure about my preflop call. I mean, I call to hit a set but, for a set, I merely get the appropriate 10:1 odds. I consider MP1 and button as under average players so, if I hit a set and one of them has top pair, I'll double up. That makes my call EV+. But as sklansky says in TPAP, I should avoid close gambles. and I think this situation is close to a gamble because I put at risk 10% of my stack for slightly positive EV.
During this hand, I was thinking about folding. considering the skills of my opponents, I thought I could wait for better opportunities. But I thought that, if I won that pot (with a set), I'd get a stack insuring me to be in the first 9 places provided I played cautiously.
So I called, didn't hit my set, and lost 10% of my stack.
I understand that a laydown would seem to be a very weak play but I always keep in mind sklansky's suggestion to avoid gambles when opponents are of under average skills.
Any opinion? Some of you would have folded?

*****Second hand: I lose a good chunk of my stack*****
7 players on my table
Blinds 400/800
UTG+1 (Hero): 16000T that's a slightly under average stack.
UTG+3: 6000T VPIP=34% PFR=24%

Hero raise 800=>1600
UTG+3 calls
More than 20players left
Flop=Jd 7c 2s; Pot=4400
there's only one over card, I'm confident my opponent does'nt have a bigger pocket pair (he would have gone all in with such a small stack and a high PFR), so I bet the pot, putting my opponent all in. He calls all in with QJs and wins the pot.

On this flop, I think there's nothing to do but double up my opponent. He's quite laggy and I can have the best hand. If I check and he bets, I'm almost obliged to call and if I bet the pot, I'm not sure he'd be able to laydown 88 of less. I guess I had to shove here.

****Third hand: mandatory gamble*****
Average stack around 20000T
6 players on my table
Blinds 600/1200
UTG (Hero): 6000T I'm 12rd out of 13. I get ATs.
SB: 12500T VPIP=6%!!!! PFR=1.6%
BB: 5500T VPIP=11%!!! PFR=2.7%

I'm not sure what I should have done. There was two things I could do: fold or go all in. With my small stack, given all medium/small stacks play very tight, I can't wait to be blinded out, won't be enough to place in the first 9. So I moved in and try to take the blinds or double up. If I double up, well, I'll have less than the average stack but I can very well finish in the 9 first at the end, because the player to my right is extremely tight and I'll be able to steal his blinds.
SB move all in for 12500
BB calls all in for 5500
Well, at this point, I know I'm in big trouble as the two rocks move in.
SB has ATs, BB AQo.
BB takes it, SB and I split the side pot, I'm all in on BB nest hand and out.

I almost never play tourneys, I'm more a cash game player. I'd appreciate any thought on my 3 plays. I'll play a few more of these satellites, players are not very good. I'm amazed how many laggy players there are and how come other play so tight. I'm myself pretty tight but never seen someone play less than 10% of its hands lol.