I would say you have done half the battle yourself. Just picking out a bow that fits you and you like is a tough job in itself.
The sky is the limit now.
Just practice hard. Find coaching if necessary. If you trust the guys at the proshop you bought the bow at you can always see if someone is available for one on one teaching.
I am a new bowhunter and I have found kid my age at the local Gander Mountain to shoot with. He has helped me out tremendously. It is something to practice all by yourself, but when you get another bowhunter into the mix (especially one that knows his stuff), you will hopefully see even more improvements.
But the most important thing is to get your form down along with anchor point consistency. From here, practice, practice, practice. Learn how to fix target panic, relax your muscles, squeeze the release trigger, etc.
If you have the opportunity to practice in your yard, do so. Even at 10 yards, you can really work on your form and learning to squeeze the trigger, along with remaining relaxed and focusing on those X's.
Good luck and remember, there is alot of wisdom on these boards. Just ask and you will usually receive an opinion. . .*cough* I mean answer.