When did it get easier for you??!

I’m 2 weeks in…I know “it’ll get better” but WHEN?! does it really take 4 months for them to regulate into a sleep pattern? My boy WILL NOT sleep in the bassinet. He’ll only sleep on me or my husband so we take shifts overnight. I’ve tried all the tricks to get him to sleep in the bassinet and he just screams every time. 😭