Three things for you:
1. Congratulations! You've worked hard, and it's paying off. Enjoy this one.
2. Have some fun. Don't get so caught up in worrying about rotations and everything else that you can't occassionally take a deep breath, relax, and enjoy the moment.
3. Trust yourself. You got this game because of what you have been doing. Don't start second-guessing yourself, your calls, your positioning, your mechanics or anything else just because you're working a new level. Call the game you've been calling.
Don't forget to report back on how it went.