My Tournament pain

Despite the fact that my bankroll is up to $445, it would have been a lot higher had i stuck to cash games rather than play tournaments. My tournie form is just awful. Played in three tournaments yesterday, and didnt cash once. Not only that, but i didn't even make the first break.

First one i get AdKd early on, obviously raise and get one caller. Flop brings A 7 5 rainbow. I put in a fairly large raise which now means i've got about half my chips in the pot. The caller goes over the top for all his chips (he has me covered). I had to call really, and he/she turns over pocket 5's and im done.

Second one i get pocket 3's in the Big Blind with two other players in early position who have just limped in. Flop brings 10 2 3 rainbow. BINGO i think, especially as the first player bets into me and the second calls. As they were in early position and just limped i think its safe for me just to call here and give them the opportunity to bet into me some more. The likey is that p1 has nothing but maybe A high, and p2 maybe a 10. Turn card is a 4. Same thing happens again, p1 makes a bet, p2 calls. This is obviously the point where i put in a raise. As expected p1 folds, but p2 goes all in. I have him covered, but this pot now has 3/4 of my chips in it and at this point im thinking BINGO still. He turns over 65 for a straight, river brings no help for me and im so short stacked that the following hand I put the rest in on a middle Ace and walk into KK. I spend the next 15 minutes thinking, 'why did he limp from early position with 65'? Crazy and doubt he spent my chips wisely in the end!

I'll keep it short for the third tournie, i had QQ, he had AA.

Not sure if im doing something wrong, or if I'm just unlucky in the Tournies. I do want to play them though, as thats where the big money and glory is.......time to look at my strategy.