The situation no matter what stinks. Whether its financial, your wife, your daugther, the idea of not being together as a family
But....glad you found the site early on. I was not so fortunate.
I also buried my head in the sand in terms of her denial of another man..which...many times is the situation underneath it all where the WAW or WAH has found a new toy and its time to blame the husband/wife for everything wrong in the universe. That is coming...trust me. I hope that is not your situation but the truth hurts and it could be...
Best you can do is read up as others have suggested and focus on your daughter. You mention not treating her well so double down and be the best damn dad you can possibly be and work on yourself.
The end result will be a change in you that will make you happier and have a better relationship with your daughter. Hopefully then the rest comes together for you in maybe rekindling the R or not.
Best...
_________________________ Me-48 Spouse-WAW 52 Married for 10 years D7 ILYBNILWY 7/15 Suspect EA/PA 12/15 No confirmation/denial She files 1/2016 Working towards the Big D ...still in progress....