Appropriate time feeding , new mom

Hey moms ! I have a question so my baby girl just made a month a couple days ago and now her feeding has differently went up now to a 4 once bottle I’m kinda concerned on when should I feed her do I still do the 2 to 3 hour thing or do I let her alert me when she’s hungry by looking at sighs (eating hands , crying , smacking,etc) by it being 4 ounces I’m honestly just not trying to over feed her neither am I’m trying to starve her by waiting her wait ... please give me feed back