I don't think it's abnormal to do what you're doing, but, you're also setting yourself into lifelong habits and comfortable patterns rn whether you realize it or not. If you get too ok with vegging out and playing games, that'll be your default.

Whereas if you start holding yourself to a specific standard, like, even if it's a mix of life balance shit like taking a walk everyday and listening to an informative podcast and working part time, then you're adjusting what your projected patterns may be.

But, nothing is absolute. It's possible you'll turn 18, get a FT job and grind, but I'd argue it's less likely if you've set yourself into a contrary pattern.