Well, even I was crap at rolling when I first started. My first spliffs werent even smokable - the flame would run down the side of it, it burnt unevenly and everything kept falling out. After a few months it just becomes second nature.
I always prefer rolling just with herb, especially if its a little moist. When its a little moist, it rolls really tight and just the way you want it. I know you might say 'but I dont have enough herb to roll a pure joint'. Easy, use a smaller skin or tear a large one in half. Anyway, its been proven that herb (smoked on its own) can help prevent lung cancer, plus it tastes better on its own.