Advice regarding dismissal appeal letter?

Meds helped but then at the end 4th quarter didn’t go well. That may make it hard for you to argue that mental health and meds were the problem.

Believe me I am sympathetic. But also thinking there is a less stressful way for you to do college, for now. Does your college have continuing education or online classes for unmatriculated students? (I am writing from personal experience with one of mine.)