Prozac for OCD

I’m sure there have been similar posts but I was prescribed Prozac for my OCD today but I’ve always been to afraid to take any medication for my OCD first it was Lexapro which I didn’t take then Zoloft which I didn’t take and now Prozac and I’m terrified to take. Does anyone have any advice or experience with Prozac for OCD? I’m just so worried about side effects and the fact I can’t just stop taking it immediately if I have bad side effects.