Little guy is about three months old and his sleep isn't bad but I know we need to cut out bad habits like nursing to sleep now that he's out of the "fourth trimester"

What did you do or would do over again at this age?

Earlier bath and bed routine (may have to start at like 6?!?)
Stop nursing to sleep (starting earlier will help)
Quit swaddle (he can roll)
Consistent environment (get white noise that stays on all night)