I have a very important presentation for school that will be 20% of my grade. I struggle with performance anxiety, and I never seem to feel truly prepared before a big presentation. Even small acts of public speaking, such as responding to a question in class, have me stuttering/noticably shaking. 1/4 of this grade is about the security of your presentation and my anxiety around failing it has definitely made my general anxiety worse.

edit: title should be presentation, sorry for the typing error