MTT's day one..........

After getting screwed in the stt's I decided to take a break and start playing some mtt's. Well I played 3 tourneys today and cashed in 2 10k guaranteeds and bubbling the 20k because im an idiot. Took 6th and 2nd in the 10k's which for someone who has never played mtt's before is pretty damn good I think. During the tourneys I was unsure what to do many times and made many mistakes.......When I was heads up in the 10k I went in with the best hand and lost and was in 3rd in the other 10k and lost to the guy in first when his set beat mine which he hit on the turn, it was pretty tough to take but I guess it happens. So going forward I'm pretty optimistic on MTT's, I know i'm still pretty green when it comes to them, but I'll learn pretty quick. Any books or other advice to a new mtt player? thanx