Confused

Sooooo me and my husband had mutually decided earlier in the year to separate. When the time came his mom tried to have a sit down with us and reason why we should stay together . I fell for it cause ultimately I didn’t want my family apart but I felt he wasn’t trying.. ok fast forward now . There hasn’t been much progress. I feel nothing I do is good enough or taken in consideration. Though im not fully to blame of the demise of our relationship he doesn’t take responsibility most of the time for how he treats me. So with that being said these past few months I’ve been feeling like separating is what’s best but I hate conflict and usually shut down when im feeling a certain way and wait til it festers then say how im feeling. I know that isn’t right and im trying to learn how to express my issues healthier. So if anyone has been in situations similar I would love to hear some feedback. We do share a 1 year old daughter together. So im always worrying about if I leave will he try to take my daughter from me etc etc .. again just some feedback from someone who may have dealt with the same thing or even similar .