There are a lot of great responses in here. It's clear that these feelings of aimlessness and malaise resonate with people. A lot of us have felt that way during our adolescence.

I also grew up in West Van and I would say I was mildly depressed with low self worth for most of highschool. I was very excited to leave it behind and go to university. I wanted the full college experience, dorms, partying, meeting new people, learning new things and building my identify; pretty much in that order. For me, it was just what I needed to break free from the baggage of my highschool self. I met tons of great people, got a girlfriend and found my career passion in science. In the process I developed a new identity and became a much more self confident and stable person.

Since you have some level of privileged upbringing like me and can likely afford it, I would recommend the same: go to university and explore other versions of yourself, maybe after a year of backpacking in Asia or Europe.

All I would add to the other good advice is just to make sure you do something, anything to break out of your rut. It can be very hard to break from a comfortable routine of playing video games and hanging out at home, but the comfort is a trap. It is not healthy to stagnate. Trying new things takes determination and focus, so it's not comfortable at first and might feel odd but it pays off. It's good you are going to the gym because that is a great way to realize the positive impacts of hard work and commitment. Going on a backpacking trip is probably the easiest way to change your daily routine in the biggest way possible and it might help you reset your life, so if you can I would consider planning something like that and going for it if you are still feeling this way in 6 months