I just left my online lecture 45 minutes into the 2 hour class. It's a math course, and I'm unprepared for most of whatever the professor teaches. I've been unable to revise the course material due to the same anxiety and have 4 of my assignments left untouched. This is the first time in my life that the anxiety had completely crippled me. I went through COVID back in May, and ever since then I've been so anxious about even tiny things, and have these weird moments when I'm unable to do anything for multiple hours. I've never recieved any help for this, and I don't know where to begin. It's pretty terrifying honestly, my grades are gonna go down the drain if this keeps on happening.