Sorry to hear. It was likely inevitable.

As job said, this has now become a business deal. It is hard to grasp but you will now be under the microscope and must do everything to protect yourself emotionally and financially. Grab any documentation you have (loans, cars, house, birth certificates, banking, etc). Do not speak to her about anything regarding legal proceedings. She will try and sucker you in with tears and try to hook you emotionally. Stick to speaking in terms of visitation only, and do it via text or email.

It [censored], it will be draining and exhaust you. You must stay strong and please find an outlet so you do not start drinking again. kicking that habit took a lot of willpower and courage.

You will be OK. Life will go on and you will come out a stronger person. It will take time though.