Welcome to KH and to the wonderful wacky world of knitting. I know what you mean about knitting and ripping and knitting and ripping. I do that a lot, and I always tell my husband that when you do this, you don't need to buy any more yarn (although I do anyway).
Perhaps you can learn some more complicated knitting techniques here on KH. If you haven't already, check out the how-to videos under the Free Videos tab.