I’m exactly the same, turned my 3 year degree into a 5 year slog because I’d get too anxious to do assignments or even exams. Took me a long time (decades) to learn about anxiety and it’s impacts, so you’re doing well to be aware of it earlier.

Therapy & mindfulness has been a huge help for me. It’s helped me be more aware of how I’m feeling, and to take steps when I’m feeling anxious. For example, I’ve got a regular reminder in my Phone to check in with how I’m feeling, to actively think about what I’m avoiding, and to consider what it is I’m afraid of that’s causing me to avoid. If I’m feeling anxious or avoidant, then I do something to help, like try to ”explore” why I’m feeling that way, and to do some mindful breathing / grounding exercises.

You’ve done really well to ask here for advice, being vulnerable and open is a huge first step. I’d recommend seeing a professional therapist or counsellor if you can, especially while you’re studying - your education institution should have some people who can help.