Should my 3 month old be on a schedule ?

I have been letting my daughter eat when she’s hungry and sleep when she’s tired but I’m worried she’s sleeping to much and going to bed to late. Should I be putting her on some kind of schedule ? She usually wakes up between 6-8 and stays awake for about an hour after eating and then sleeps for 3-4 hours and then eats and is awake for about an hour and then sleeps for maybe an hour or two and then does the same thing until 7:30/8 she eats and then sleeps but I try to get another feeding in before bed time should I just put her to bed after 7:30/8 feeding and then let her eat whenever she wakes up again? Is about an hour of awake time normal or should she be staying awake longer ?