Help me out

I am under a lot of stress and I don’t know what to do. I am currently 19w and 5d. I am going through a big custody battle with my ex. I am trying to get her back to the school she was in for 3 years. He won’t let her go back, he also has is so help out way to much. Like do all pickups and drop offs. I don’t mind if she helps some but not all the time. I don’t have my so help that much. I also just go my engaged and trying to plan all of that too, I just got accepted to school, and I am a care tech during the pandemic. I feel like I’m about to break down and lose it all. What advice can you give me.