Welcome to Psych Central, sarcgeo. One additional forum, here on PC, that may be of interest to you would be the healthy parenting forum. Here's a link:

https://psychcentralforums.com/healthy-parenting/

From what you wrote, it sounds as though the decision to divorce is pretty-much made & the only remaining question is how you cope with the impact of the divorce on your daughter as well as yourself. Here are links to a dozen articles, from Psych Central's archives, on the subjects of divorce, the impact of divorce on children, & healing following divorce:

When One Spouse Wants Out of the Marriage But the Other Doesn't

The 40 Do's and Don'ts During a Divorce | The Exhausted Woman

Kids and Divorce: Ten Tough Issues

Talking to Your Children About Divorce

https://pro.psychcentral.com/exhaust...-need-to-hear/

https://psychcentral.com/lib/how-par...dium=popular17

https://psychcentral.com/blog/3-step...after-divorce/

https://pro.psychcentral.com/exhaust...ter-a-divorce/

https://psychcentral.com/blog/how-to...after-divorce/

https://blogs.psychcentral.com/imper...tional-wounds/

https://psychcentral.com/blog/five-t...lp-you-thrive/

https://pro.psychcentral.com/recover...rom-divorce-2/

My best wishes to you & your family.