Is this evidence for custody?

Ry
I clearly don't have enough right now, but baby daddy parties nonstop and I don't want him having anything to do with his daughter. It seems selfish but I won't let her around his drunk driving ass who's house smells like weed constantly. I did as much lurking as I could since he blocked me on Instagram where all the good stuff is, and I have a tweet that says 'god I was so drunk last night 😂' and he's only just turned 19. He posts a lot of pictures of his friends passed out drunk or throwing up but none of him, so I don't think I could take that to the court even though they're all underage. Is the tweet something I should take in or do you think it wouldn't be looked at as serious evidence?