I would have:

• 5+ extra free hours a day.
• Invented computers.
• To take notes in class. (Powerpoint slides FTW)
• To buy shoulder/manbags in real stores (awkward!)
• To troll my friends IRL
• To read the newspaper
• To Make a listography notebook
• To Watch TV instead of streaming what I want to watch
• A bunch of Naruto Manga lying around
• To search my school library for books to reference while doing papers/essays.