I see, thanks for the tips! 
I don't like going outside much, though... Is it okay if I just stay inside, behind my computer? That's my happy place.
It's okay to stay inside if that's what you enjoy! Be aware though, that staying isolated for long periods of time can cause mental health issues
what should i definitely do in life? To have a happy and fulfilling life, you should definitely try the following:

- Follow your interests: it will be very rewarding to focus on your passions and learning what interests you. It will be very rewarding in the end
- Explore: go outside, visit places and meet new people
- Try out something new: maybe there is a topic that interests you? Give it a shot, it may be very interesting to you
- Be yourself: Know who you are and what you want. This will help you greatly in making decisions. Be nice to the people around you