do well in the dunya, but remember, do not be deceived by your youth- do not put off repentance, Qur'an, and good deeds, thinking oh i will do it when i get old-who guaranteed you next month, forget about the old age you believe you will attain?
Go to school to get a job, don't go to school to pursue studies that wouldn't guarantee employment.
Move out of your hoyo's house.
Learn how to manage you finances.
Read, keep expanding your horizons it'll pay off in surprising ways.
Travel, the world is huge, before you know it you'll be having kids and you won't have the time or the funds to make trips across the world.
Spend as much time as possible with your parents (after you've moved out), small things like chilling at a coffee shop with your hoyo or going on a stroll with your abo. Talking to your parents as an adult vs when you were a kid isn't the same thing.
Take it easy, don't stress yourself out.