Quitting Smoking

Anybody have luck quitting smoking? I struggle to do it because the psych withdrawal symptoms feel a lot like mania to me. I get really anxious, can't sit still, am constantly ruminating. I know it its just the nicotine withdrawal, but I get really scared and psych myself out. Anybody relate? Just tell me I'll be fine and quitting smoking will be a good choice in the long run. Lol