$6 NLTRN: Three dubious pushes

[Somekid]

What does everyone think of these pushes? Are they all massive spews?

Hand 1:

My opponent started off kind of tight, but was loosening up on the flop, and starting calling my continuation bets. I decided to push the flop because I thought my hand was very vulnerable, and I wanted to take down the pot (which was 50% the size of my stack) right away. Did I overplay my hand?

PokerStars No-Limit Hold'em Tourney, Big Blind is t100 (2 handed)

BB (t1850)
Hero (t1150)

Preflop: Hero is Button with 8[img]/images/graemlins/club.gif[/img], 8[img]/images/graemlins/spade.gif[/img].
<font color="#CC3333">Hero raises to t225</font>, BB calls t125.

Flop: (t450) 9[img]/images/graemlins/spade.gif[/img], 9[img]/images/graemlins/club.gif[/img], 3[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
BB checks, <font color="#CC3333">Hero bets t925 (All-In)</font>, BB calls t925.

Hand 2:

This was the first hand of the match, against an unknown. Did I massively overplay my hand? As soon as I did this, I realized it was probably pretty stupid...the flop is dry, and I'm not sure what my opponent could've been 3-betting with if not an ace (in which case I'm almost surely beaten). So, tell me I'm an idiot and hopefully I won't do this again.

PokerStars No-Limit Hold'em Tourney, Big Blind is t20 (2 handed)

Button (t1500)
Hero (t1500)

Preflop: Hero is BB with 3[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/spade.gif[/img].
<font color="#CC3333">Button raises to t40</font>, Hero calls t20.

Flop: (t80) 2[img]/images/graemlins/club.gif[/img], T[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">Button bets t60</font>, <font color="#CC3333">Hero raises to t160</font>, <font color="#CC3333">Button raises to t260</font>, <font color="#CC3333">Hero raises to t1460</font>

Hand 3:

The raise to 330 looked to me like a hand that didn't want to see a flop (like a small-medium pocket pair), so I thought pushing would be +EV (since I think my opponent folds small-medium pocket pairs here a decent amount of the time).

PokerStars No-Limit Hold'em Tourney, Big Blind is t20 (2 handed)

Hero (t1710)
Button (t1290)

Preflop: Hero is BB with T[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/club.gif[/img].
Button calls t10, <font color="#CC3333">Hero raises to t80</font>, <font color="#CC3333">Button raises to t330</font>, <font color="#CC3333">Hero raises to t1710</font>