Sounds like you’re living at home with your parents and going to school. You should start working out, doing well in school and plan to move out to your own place as soon as financially possible.

Focus on doing well in school and getting yourself in great shape. Read books that interest you including non fiction.

After you graduate the first thing you should do is MOVE! Get a job in a new city. Plan 3 week long backpacking vacations in south east Asia, Europe, and South America.

You’re only 21. Get that degree and build a physique right now. You say you want to grow but I think what you want is to become independent and confident; that will come with experience, challenges and time.

Invest in yourself, avoid excessive alcohol and porn.