I can't really say as I was lucky enough to win my first MTT with the potential to win money! (it was an event through cardschat).
At least for my limited experience, a lot of the "winning" comes BEFORE you ever get to the tables though. I studied a lot of the cardschat course, took detailed notes and even read a few
poker books from cover to cover - for sure it helped me play well...and perhaps get a bit lucky too
My preparation gave me a better chance to get "lucky" though
One tip of advice which helped me a lot (although simple) was to "
bluff less and value bet more." I (and many others starting) have a natural inclination to try and trap opponents, but sometimes it is better to play straight-forward and bet your stronger
hands