Having a crush

TLDR at bottom
Basically during freshman year, there was this junior in my class that I really liked. Because of the pandemic, I wasn't able to get any of his details other than his name. this year he is now a senior. obviously a problem as he is gonna graduate soon. Thing is my high school is on a hybrid schedule, I'm day 2 and I don't even know what day he is, I'm not even sure if he's actually going to school and is doing online instead. During the pandemic I was able to find his messenger but I didn't do anything bc I was scared at the time. Now I think I'm ready but what a coincidence, his messenger profiles deleted (or private) ( ￣へ￣ ). Literally only other way I can think of contacting him is messaging him through our school emails. Ik how dumb and stupid and cringey that is and what a weirdo id be doing that, but man I really like this guy. I need some advice idk what to do, its getting close to the end of the year which means when he graduates as a senior, his school account will forever be closed.
TLDR: I really like this guy but I only have one desperate means of reaching him, what should I do ?? Also hearing what y'all would do will be helpful as well (▰˘◡˘▰)