Also, you should keep in mind that the first couple of rows of crochet are just like the first couple of rows when knitting: they're extra hard to control because there's no "product" to see or hold onto.
I started with crochet because my grandmother taught me when I was little, but now that I knit, I can see why crochet would be hard since the knitting needles provide a lot of stability for whatever it is that you are making. I'm not an expert crochet'er by any stretch of the imagination, but I have made some fairly decent items that way. My best advice is to take a break from it for a while and then try to power through it again. Do like beginner knitters do and try to make a square of just single crochet rows. It won't matter if the first few rows are weird... once you get the rhythem to it, you'll really know how it feels and you'll have something to kind of "hold" while you keep working.
You can do it!!