Hi @Blueberries
Although I'm sure I can't fully put myself in your shoes, I would like to share how I experienced a similar situation and I can kind of understand your irritation:) I have been struggling with my acne for quite sometime, though it got a bit better now I may say:)) My family reacted in the same manner your mother did. I mean, I sorta know that it was because they cared about me so they wanted to find a way to improve my condition. But it did piss me off a bit, since I felt like I was a bit "controlled". I certainly did not like how my family was trying to tell me what to do as well because I already did all of the research myself. So I may say I can relate a bit to the situation you are going through.
I know it's hard for your mother to stop giving you advice based on her observation, it might be because she cares about you and wanna help, which probably has made it a bit harder for you to communicate your opinions.
So as a person who can kind of see your frustration, I would recommend letting your mum be involved by sending her a scientifically proven article and simultaneously discussing with her how to take care of your skin so that she knows which research you have done and what you are up to. Because really, I think it would be hard for your mum to stop "giving you advice", so I think maybe a compromise could be helpful. She would be able to know that you are getting the hang of it without having to stop sharing her opinion.
It probably would not make any instant difference in your relationship, but I think it might help reduce miscommunication between you and your mum.
I hope this can help you feel a bit better🥺.
