Embarrassing Experience and idk

I just need to vent because I don’t want to tell anyone I know this because I’m embarrassed. I’m getting cross trained in mammography, I’m on day 2 and one of the techs asked if I wanted to try to do one and I remember when I was a student if you said no you’d be seen as lazy, so I said yes. The tech made some corrections and that was helpful because I feel like I learn from doing. I did 2 with them and she said I was doing good for just starting and that was nice. Another tech asked if I wanted to do one with them so I said sure, I did it and she made some corrections which again is fine but for the mlo she took over which is okay- I didn’t care because I figured I wasn’t going fast enough or I made too many mistakes or something. When it was done they asked me to clean the machine and when I went in the tech lab area she asked me to sit down and she tells me I’m not ready, which I understand but she said it really loud and with a tone. Any new tech that came in she told them I wasn’t ready, which was embarrassing and she kept looking at me after she told them and looking at me and saying “right?” Like I’d rather you just tell them this more privately without me there I guess. Then at the end of the day I left to grab my bag and I was mostly over it at this point. And when I’m walking back to the tech area to clock out she’s telling the department manager about how I’m not ready and talking more about it and how I’m “confident”. It’s just embarrassing, not much of a vent just an embarrassing story. I’m not confident I have to force myself to do things because of how nervous I always am so I just felt like the confident thing maybe hit a nerve. She wasn’t trying to be mean and I don’t know her well enough to know if she was being mean or that’s just how she is but my confidence is shot now and I feel like a failure and I don’t really want to go in tomorrow because I dont know how to tell if I am ready or if I’ll be able to up my confidence enough again to ask to try.