As a teen I don't have money, and i have all the plastics I could ever need for one tourney but I need some crank baits and another rod... If I get the other bait caster should I still do a tourney and just try to get say 8 cranks? I'm kinda at a loss :(

I was 16 when I started fishing tournaments. You can get by with just a handful of essentials and just add a bait here or there along the way. I've had a job since I was 13 though, so I did have a little more stuff when I started because I'd had expendable money (it's all expendable when you don't even have a car yet). Depending on where you fish, you can honestly get away with very few cranks in a lot of situations. 

I have a few jigs, all the craws I could ever need a ton of brush hogs a ton of jerk baits and just other needed plastics but the cranks are the only issue. This lake that I would be fishing has a ton of islands and it's pretty big and it would be in May so hard to say when there is still snow on the ground here Lol thanks:)

Id ask the locals or some of the guys that you'll be fishing with to see what works well there or what they are going to be using and get 1 of each or something like that just to get you through that event. From there, just like Bluebasser86 said, add a few things here a few there. I started working on a farm at 15 and spent every single dollar on fishing stuff, I asked for only fishing stuff or money for birthday and Christmas. I traded everything I owned for fishing stuff. Don't worry, before you know it you'll have a good selection!