Tamagochis!!! I had two or three. I wasn't very into raising the pets though. I had a mermaid one and I thought it was the coolest thing, but I kept forgetting to feed her. This was my 7 or 8 year old self. Anyway, I don't know what happened to her or the dog that I had. I remember how my classmates were so invested in their virtual pets that they'd check on them every few minutes making sure they were alive.

Assuming I'm blind now but I wasn't before, I wouldn't choose a day in the past because I already have that image in my memory. If I'd never been able to see, then I'd want to see a day where my whole family was together and healthy.

The day would include:
-a rainbow
-a nature walk with the best views ever
-friends and family
-my school
-a book (would I be able to read letters though?)