I know exactly what you are doing, because I did it when I was starting out, too. I'm going to try to explain what I was doing was doing wrong, and how I got help.
When I first started, I figured out chaining easilly, but I didn't understand how to 'build' the stitches. What happened was that I was trying to stitch right into that opening chain over and over, and not 'yarning over' and moving through the corresponding new loops.
I went to a yarn store and a lady showed how to do a single crochet. But, I think if you are generally crafty, you can get it without that help.
Make sure you are using yarn you can see your stitches well with. Save the lofty, fluffy, puffy stuff and use a simple yarn. Make your slip knot and then chain 10. Let the chain hang from the hook and look at the little links in the chain. Do you see how the chains sort of look like 'v's' ? I'm assuming you are right handed here. Holding your hook horizontally, with the chain hanging straight up and down, do you see how there is a space in the center of each v? Holding your hook like you were, go to the 2nd v from the hook (there is a loop on the hook, the first v, then the 2nd v - that's the one you want. Working with the chain facing you, just like it has been, poke the hook right through the chain. Then take your working yarn, and catch it under your hook. The pull that yarn through. Now you have two loops of yarn on your hook. Catch your working yarn in the hook again - and pull it through both loops. You will have one loop on the hook and be ready to move to the next stitch. Poke your hook through, catch your working yarn, bring it back through both loops, and you'll be left with one loop. Go to the next space and do the same thing, til you get to the end of the chain. When you finish you'll have one loop on your hook, then chain another. Turn, and try another row. I hope that helps. If you can't find any, I'll try to post some pictures of what each part of the process looks like.