hey man, all i can say is it took me an entire year to roll joints to perfection. the first 2-3 months were hit or miss. around the 6 month mark i was rolling fairly consistently, but was lacking size, shape, etc.

I started rolling with little roaches in the ends a few weeks ago and voila...perfection! Believe me when I say, there's simply nothing more satisfying than being able to roll a nice lookin' jay whenever you please. plus, it's much easier to be carrying papers and a sack rather than a bowl. Also, if you go to a lot of concerts (I sure as hell do), nothing beats the convenience of a joint over a bowl.

Practice, practice, practice!

This video is hands down the most helpful if you're just starting...very funny too!
YouTube - Joint Rolling Techniques - Lesson 1 - Two Leaves

CHEERS!