I'm a unhappy married man thats married to a nagging wife that has anger problems. What do I do?

I know you have a child but you have to get a divorce, especially since she isnt willing to get help. She is either very depressed, bipolar or both. and believe me your daughter can sense the unhappiness. word of advice the online sites for divorce are a pain in the ***, let an attorney do it, I've been there, and not attorneys are . I found one for 750 bux and it only took 2 months good luck