Don't beat yourself up over anything that happened in the past. Maybe you could have changed the course of history or maybe not.
All you can do is control your own present to influence your own future. Set your priorities (your own wellbeing, your daughter's wellbeing, your own finances).
Find a good attorney right now. You may or may not have to use them. But you better get the BEST attorney you can get RIGHT NOW. If this goes to divorce, you will need the best. If you don't have a good attorney, you will fall for your ex's BS.
Good luck. Keep posting. BREATHE.
Save yourself. Nobody is coming! BD:11/2017 Filed:12/2017 Final: 2/2018