Congrats! Yeah, may as well kill some brain cells before it's even fully developed hey :-)
You aren't 21 years old so you will get arrested if you drink alcohol bcuz you are American
just spend night walking from one bar/club to another on dundas west, u'll be good
If you're into arcade games and drinking - there's a club called Tilt.
If you have friends and are into board or table games and drinking - a lot of snake & ladders, or snakes & lattes or whatever the fuck it's called now around town
If you're into indie or rock or local band pub stuff at all with an atmosphere - Horseshoe Tavern.
If you're into indie electronic music stuff - Red Nightclub.
If you're into the most popular crowded bar in town to have fun, protect american tegridy and have a fight or cheer (you choose) with the local folk - Madison Avenue Pub.
For a cheap but atmospheric dark shady looking pub where I like to hang out with friends and unwind there's Green Room
But there's a lot of great less popular bars with a niche to them, also strip clubs if you're into that type of stuff, honestly I kind of forgot their names rn, I like to party in great niche places but have kind of taken to other things for now, most places are somewhere downtown walking distance in the vicinity of bloor and spadina street intersection.
That's my suggestions for you sir, resident of Toronto.
go to dave and busters
drink 30 virgin bloody marys
play ddr alone for 7 hours
i envy you so hard, im 20 :(
go to sneaky dees at college/ bathurst and write on the tables and stuff.
order weed for delivery using weedmaps? it can be really shit/shwag/terrible so gl with that one tho
don't do anything suggested on blog.to too many people go to those events and they get swamped