Here is the full list of all 37 Psy High achievements.
Saved the model citizens
Destroyed the Nexus
Win the Kingsport Athlete Award
Write a terrible limerick
Destroy the Drama Club play
Destroyed the Vinculum
Pretended to be brainwashed
Have a horrible public breakup
Sold drugs
Go out with a rebel
Helped Ms. Clay become principal
Be king or queen of the prom
Go out with your best friend
Make the Drama Club play a success
Get the lead in the Drama Club play
Stay until the end of the party
Go out with your longtime crush
Get a job
Find who stole the iPhone
Win the Kingsport Scholar Award
Make a romantic prom-posal
Get caught cheating on an exam
Find the tidepool
Go solo to the prom
Get a small part in the Drama Club play
Go out with a journalist
Go out with three people at once
Get arrested
Get kicked out
Left the model citizens
Drew on the magic of the tidepool
Enhanced the Vinculum
Controlled the Vinculum
Became a model citizen
Gave powers to everyone
Helped elect Governor Pierce
Left Kingsport as it was