I'll throw in my two cents. I work on a lot of bows and the "best" bows aren't so different than the "beginners" bows nowadays. Sure you may get a little more speed out of them but, a perfectly tuned slower bow kills more deer every day of the way than an untuned "fast" bow. Anyways. Sorry went on a tangent. Here are a couple things I'll recommend:
1. Shoot a lot of bows. Every make. Model and style you can get your hands out. You'll know it when you shoot it.
2. Since it's your first bow I'd recommend getting something very adjustable as far as draw length and weight. That way you can custom fit that bow to you without having to buy new cams or limbs. Bear, PSE, Bowtech all make very adjustable stuff. (Not endorsing anything. I shoot a Hoyt & Elite. Lol)
3. Once you find that bow that "fits" you best, make sure to get a decent set of arrows, with the correct spine and getem cut correctly to fit your bow. No offense to anyone but don't expect to get great accuracy out of standard cut Wally World arrows. Easton, Bloodsport, Black Eagle, Carbon Express to name a few are solid brands.
4. Learn your bow like you know the back of your hand and learn how to do tune it yourself. YouTube and a good bow shop can show you a lot. This will make you much more proficient at your equipment and greatly help with headaches when things aren't acting right.
Anyways. Sorry for the long draw out post. Don't hesitate to ask anyone here if you need any help! Good luck brother!