Breastfeeding/stress from others

Hi, mommies. Maybe I just want to vent or an encouragement from moms out there. My baby was born weighing 2.6kg at 37 weeks. He is 1 month and 9 days now. On his follow up check up sa Pedia, a week after he was born, his weight is 2.8kg. Exclusively breastfeed po si baby. Na-stressed lang ako everytime may nakakakita sa kanya kasi sinasabi laging maliit sya. I-mixed feeding ko na raw dapat para tumaba, etc..Meron kasi syang mga kabatch na babies and matataba sila, so laging nacocompare. Maybe my milk is not enough daw or hindi maganda ang milk production ko kaya "maliit" si baby. When I was still pregnant, goal ko talaga maging EBF si baby. As a mom, of course I want the best for him kaya nakakainis kapag nakakarinig ng kung anu anung comments. It makes me feel na may kulang sa ginagawa or sa pagiging nanay ko. Nakaka stress talaga sila. Some of the comments are coming from relatives, too.?‍♀️