Not sure if divorce would make me happy. But it helps with moving on from what I hear. Never been divorced, so I honestly Can't say if it would or not.
It's been a year since BD so you are likely getting to the point where you can decide if that's what you want without letting emotions (anger/ fear or whatever) cloud your judgment. Divorce itself isn't going to make you happy, but it could very well help you to move on and become happy. Personally, leading up to D I hated the thought of going through with it and was convinced I would be really depressed and sad afterwards, but when I walked out of court and drove off I just felt relief, like a great weight had been lifted off of me. It was no longer hanging over my head like a dark cloud, and the financial implications were no longer vague and undefined. It's like that saying "Better The Devil You Know Than The Devil You Don't", right?