and Im so frustrated that I have no control over my body.
Awww *hugs* Kim. I don't know much about the depo side of things, but I just wanted to add that when I was charting & temping, it began to give me a great sense of control over my body. Over a period of time (9-12 months), I started to really understand my body, to be able to interpret changes, to predict ovulation etc, and when I eventually went to see a GP about the length of time we'd been TTC, my charts gave her lots of information to be able to help me properly.

Stick with it sweets - over time it will seem less confusing and out-of control, even though it doesn't seem like that at the moment