my dealer in my first year of university taught me how to roll....you really just need to practice. take your time, chop it up well, re roll it if its to loose. my dealer told me that when you are learning to roll, dont smoke your weed any other way then joint form, that way your reward for learning to roll it is to smoke it.

you learn pretty quick. watch how other people roll as well, ive picked up some good tricks for making rolling easier. like rather then fiddling around with the bits that fall out, you roll it, pack it, put the roach in, pack it again so its all even, then before you roll the tip pile up the little bits that fell out when rolling and put the joint to your mouth and suck them up. 1000 times easier then picking it up with your fingertips.