Try not to get overwhelmed by all the info. Like PP said, you'll be there long enough that you'll get to do pretty much evrything you want to do.
My biggest tip would be get there before opening. It doesn't matter which day, just get there a little before you're allowed to go in. Even if you aren't doing MM, you can still get a lot done in the first couple of hours. And one siimple rule about MM is if you don't have MM any of your days then do fantasyland rides on a non MM day, first thing in the morning.
My other tip would be to go ahead and use FP, at least for a few rides. You don't have to do anything complicated like have a runner or try to get a bunch in one day. If you want simple, then just pick a ride you want to get FP for first and then get it. You don't even have to get it when the park first opens. You can get it sometime within the first couple of hours as you walk around if that would suit your style better. But it's really nice not to have to wait in a long line for all the big rides (indy, space, splash, soarin' etc) so try to use FP at least a little. It's really not complicated but I know it seems like it when you read about people having all these elaborate plans on how to maximize their FPs.
And last, you still have a few months before you leave so just hang out here on the disboards and absorb the info and feel free to ask as many questions as you want. Don't worry about trying to learn it all but just look at the threads that interest you and you'll start to see a lot of the same info being posted. It will start to seem less overwhelming as you read it over and over.
Hope that helps!