we are talking the absolute jackpot here
  1. i'd finish university first, then pay off my closest friends debts and my own.
  2. i'd pay off my parents mortgage and buy them a house anywhere in the world. pay them back for university too.
  3. give my little brother money to buy a house and more when he's old enough
  4. buy my grandma a house closer to her family
  5. go and visit my dear friend ben in the states, i'd pay off his debts and give him money towards studio time or recording equipment for the music he wants to make. or whatever he needs to do what he wants to do with his life.
  6. several festival tickets for the summer.
  7. with whatever i had left i'd go travelling, and not stop until i'd run out of money.