How to get 4 month old ready for daycare

Baby will be starting daycare in about a month, he’ll be just barely 4 months when he starts. I am stressing about how to get him on a routine/schedule!

Right now we do not have much of a set wake up time or bedtime. Part of the struggle we’ve been having is baby is not a good sleeper in the evenings. I’ve attempted to keep a bedtime, and it’s gotten slightly better… but most nights we struggle to get him to sleep until 10 or 11pm. If he does fall asleep earlier than that it’s usually more of a “nap” as he will sleep for a short little bit, then wake up. We end up giving him a last bottle of the night around 10 or 11pm too.

Im also not sure what time to start waking him up at in the mornings, as our daycare drop off times are going to vary depending on my work schedule.

Anyway, any tips for getting a young baby on a schedule? Or any daycare tips in general?