I feel like my boyfriend isnt attracted to me anymore...

So here's a little backstory, we've been together since I was 16 & he was 19. We had a baby when i was 16 & again when I was 19. I'm currently 22. Lately the only time he wants to have sex is when he's drinking/drunk. Honestly that's when he has the best sex anyways so it didn't bother me until lately, I've been SUPER horny and he just pushes me away with my advances.😭 I don't know what to do with myself anymore.. it's seriously hurting my self esteem. I need some 🍆😂😂 I've tried masturbation and it's not doing anything anymore 😒 Any tips on how to get him in the mood would be appreciated!