Haven't got lots of time but I really do think you need to keep doing the things you've been doing. You, like me, have come so far in the last few weeks and what you've been doing has moved things forward.
Give both of you space, shower love on your daughter and see how long you can stick things out.
Do you want to give up today? I suspect not, so don't agonise over the future. That is one of the great lessons I've learnt through all of this.