Anxiety and school

So I’m in nursing school and when we have labs and competency I get panic attacks and shake and it makes it hard to do what I need to do and it’s embarrassing lol I’m able to deal with it in life and haven’t needed medication but I get nervous with higher ups watching me. I’m fine doing things at work and what not but when all my classmates and teacher are watching is when my body freaks out. I don’t have insurance so medication is out of the picture right now. What are some ways I can calm myself during these times? It’s bad lol I know what I’m doing but I just tend to freak out when everyone is watching lol