First of all, jamon has been killing it this year and I still haven't found my tourney rhythm, so listen to him =] I will say a few things, though.
Work on your biggest weaknesses. Those are the areas that you can improve on the most. If there are a couple shots you struggle with or if there are a few holes your friends beat you on, work on getting them down. You can't be amazing without being solid first. Also, work a lot on your putting. It is hard to play a good round with bad putting, or a bad round with good putting. Good putting also takes a lot of burden off the rest of your game. This doesn't mean throwing 20 putters at the basket. It means setting up to every practice putt and carrying out your routine. All that matters in disc golf is that you can step up and make that first putt every time. Finally, work on getting your confidence up. Confidence will allow you to commit to an aggressive shot, but will also allow you to make the smart lay up on a tough hole knowing you can get birdies elsewhere.
I wouldn't develop a strict schedule. Your game is going to change, and your body is going to feel good and bad at times. Just go out there and stay focused, and make sure you are having fun every step along the way. Setting a strict schedule is just going to make you feel like you need to do things when you shouldn't. If you are having fun and staying focus, you'll want to do whatever you should be doing. Also, I wouldn't have the mindset of preparing for a specific tournament. It is good to set goals and all, but doing well in tournaments is all about bringing your game and executing confidently, not about feeling like one weekend of your life is do-or-die. Get your game to where it needs to be, and you'll do fine.
Hope that helps.
Nuke, Force, Crush, Predator, Teebird, Avenger, Wasp, Comet, Zone, Challenger