11 month old not sleep trained

She wakes up 3+ times every single night and has been doing this consistently since 6 months old and I'm unable to sleep train her. My daughter screams on and on if I leave her in the crib, MIL gets mad if I let her cry and demands to take her, and husbands work schedule doesn't allow me to sleep train her without him running the risk of getting no sleep and getting seriously injured at work. I don't know what to do. There's times I just give up and sleep with her in the bed because I'm exhausted and she refuses to stay in her crib quietly if she wakes up, she immediately starts screaming and wakes the whole house up.