I need help. ADVICE please!!

My boyfriend or soon to be ex and I just had a newborn baby we live together... but everything is under his name.. Our baby is almost 2 weeks old.. and my boyfriend goes out around a bunch of people and comes home drunk.. then picks up our baby and thinks that’s okay i break down and have emotional panic attacks because i’m so scared he’ll hurt her on accident or get her suck due to the pandemic going on. Tonight he went out and I got sick of it and told him if he comes home drunk that I am leaving. and I told him i’m unhappy because i’ve been very unhappy with him lately, just the constant drinking and stuff. I finally got my baby to sleep and laid her down. he came home and opened the fridge and chucked a frozen butter at me. then told me to never ever tell him i’m leaving again. he went into the room and picked up our sleeping daughter.. and of course I just break down.. he’s laying with her right now and won’t let me even near her.. and i’m scared to make him mad. especially if he has her. this is the first time I told him i’m unhappy and wanted to leave and this is how he reacted. he keeps telling me to leave but tells me I can’t take our baby with me. he keeps saying “f**k you” to me. and says “you don’t know what i do for you.” I refuse to leave this place without my baby girl and I DONT KNOW WHAT THE HELL TO DO. i’m so scared. I just cry. idk what to do. what can I even do. I feel so stuck. 😭😭