LSD <3 (done microdoses a few times, then 125, 250, and probably around 300 next time, around there is a good level to stick at)
Weed and alcohol (these are not especially pleasant highs but they are accessible and you can do them often)
Relatively new - would like to try ket, DXM, DMT, molly, shrooms. But in general open to trying most things at least once.
First year maths student