Bedtime?

When do you guys put your babies down to sleep? My little one usually naps 2-3 times a day from anywhere from 20 minutes to an hour. Usually around 1 and then 4 and then normally sometime before bed the times vary and sometimes she doesn’t do a third nap. Just if she’s very tired. Her last bottle is at 11 and that’s when i put her to sleep, right after she eats. She usually will wake for a bottle at around 5am and go back to sleep until 930 and then she’s up for the day. Idk when i should start putting her to sleep earlier and if i should continue feeding at bedtime? I’m a first time mom and don’t want to mess up any sleep schedule. My baby is 4 months btw and will be 5 months on the 24th of March