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