Take out a 200,000$ loan and party hard. Use up all my ritalin in 2days(ADHD meds r really fun when taking extra) and tour the city going to the most expensive cafes I could never afford. Get all my close friend and have a celebration touring the city eating as much as U could eat, Mexican with Fanta. Go to my university and bring my parents and give them a tour, thank my teachers. Buy my best friends a car and send it to them (even my overseas friends) rent a Lamborghini for the 2 days or a rolls Royce to carry all my friends and family. Have all my valium over 2 days.
Edit: oh I forgot I'd just give my dad 1/3 the money, my mum 1/3 of the money and my sister 1/3 of the money and quickly take out life insurance.