Appearing inattentive at work?

Hi all, I wasn’t sure exactly what to file this under. I started a new job recently (my first actual job out of school lol). I train with a new person every week as I am learning different departments. Today I had someone ask if I wanted their feedback and I was like of course, obviously I want to know how I’m doing and what I need to work on. I thought they were going to give me actual feedback about how I’m doing the job and what they think I need to do more of, but instead I got a critique of the way I appear.

This person proceeds to just tell me how I look like I’m not paying attention and how if people are explaining things to me it’s because they want me to learn. And also that I need to “look like I want to be here” (I have rbf, I’m not really sure how to remedy the way that I look). I know that she was clearly trying to help me and I’m not necessarily angry that she told me this.

This is my first job, obviously I’m trying to learn all these new things and am paying attention. I ask a lot of questions and do what I’m asked of. I have heard this in the past , however, it’s hard to control how I appear. Does anyone else have an issue with this? I am now currently emotionally spiraling and super worried that I’ll be hated at this job and labeled as an airhead. I’m just super frustrated. I had enough anxiety already about masking at work and constantly trying “not to be weird”, but this has just put me over the edge. I thought I was really doing well masking at this job LOL

Does anyone have coping mechanisms they use to, I guess, mask at work to look like everyone else?

I definitely don’t want this tone to come off defensive, I just really want to remedy this. It’s humiliating to get this as feedback when I’m a 25 year old woman. I’m literally at work on the verge of tears currently.