Those whose babies don’t sleep in the bassinet - how are you surviving?

My 9wo will not sleep unless held. I’ve tried all the ways to get her to sleep in the bassinet. I’ve obsessively searched this subreddit and other social medias to find ideas for how to get her to sleep there but nothing has worked. I don’t feel comfortable with cosleeping, so my husband and I just take turns holding the baby all day and night. Regrettably, the pediatrician didn’t have any magic answers at her 2 month appointment. I am feeling so exhausted and also sad because I don’t have any energy left to spend on my toddler. How are we (especially those with other kiddos) surviving?