Hello, I took 1 year gap while I was in College because I injured my lower back

Hello,
I took 1 year gap while I was in College because I injured my lower back accidentally. I was on complete bed rest(Not allowed to sit for eating and drinking) for 8 months(dr told me so if it gets cured then they don’t have to perform surgery but it didn’t help) and then I had diseconomy(L4-L5). After that also I was on bed rest due to surgery.
During that time I read books and watched moves in English to learn it as it isn’t t my first language, I also learn UX/UI designing, photoshop and other editing tools. I learned quilling because I love art and craft. I taught drawing and painting to my students.
So I have to write letter/report explaining everything why I took it and what did I do during that time. Basically explaining that I learned something during that time rather then wasting it. Feel free to add stuff according to your knowledge.
please add dates of my surgery and rest time.
Thank you.