What DG said is absolutely true and you will find that the more you use it the more you will be able to cast with it. I hated weighted flies when I first started using them. Now I don't think that much about them, except when I make a bad backcast and have to dodge the fly.

Before you buy a tying kit check this website, I am pretty sure there is some guidance on starting to tie flies on it. Might help you get off to a better start.