There are any app or site like sololearn teach me graphic and have a quizes and certificates from it?!!

Answer 1

I found this which looks like very close to what you asked. Learn graphics from scratch :)
https://www.scratchapixel.com

Answer 2

not that I am aware of. possibly... but it is highly unlikely the certificates would have merit in any place of employment or educational institution

Answer 3

thank you 💙💙