What do i do my wife left me cause she cant get over my cheating 2 yrs ago before we got married?

i cheated before we got married we took marriage classes, counceling, ive done everything to make her happy and its not enough she took my daughter with her and now im all alone and i miss them both im sorry for my sin but she loves to justify it every argument, she's also on the birth control shot and i heard it causes depression i asked her to wait out the shot till the effects wear off and see how she feels after words i feel like she's being irrational about all this and it can easily be solved but she wont cooperate with me. after my cheating when i let her know LIKE A MAN SHOULD MAN UP TO HIS MISTAKE, she went behind my back with 6 different men, she said she didn't do any thing w/them but i keep havng thoughts whether or not she's cheated on me and just dont wanna loose her daughter i wanna make it wrk so even if she did cheat on me id wanna make it wrk but she seems not to understand. am i dumb in love for wanting to stay with her, or should i keep pushing forwards I know God doesn't like divorce and no matter wat i wanna keep his covanant that we made as husband and wife.... anything???