frustrating

Dave bought me knitting needles. I can cast on great. I read the book. I have tried for more 5 hours...... I can't figure out how to do ANYTHING else.. I unravel the cast on! Or the yarn just slides off the tip when I try to slide it through like it says. I am putting it down. Before I throw. I just want to make one pair of socks darn it! Grrr! *sigh*