/dep/ - Depression

Might just be one of the myriad of things from health issues to shit life syndrome, but I've been thinking maybe my small living space is affecting me.

Still live "at home" in a flat with my mom at 30, my room is 2.5m x 5m so 12.5 square meters. (134.549 ft²american)
With all the furniture I have a usable space of about 0.8m x 3m maybe, so less than 3sqm. (25.833 ft²)
Spend all day sitting at my desk anyways so whatever.

Been wondering if maybe this tiny space is part of the reason why I just don't do anything.
Do any of you have experience with living in a small space for a decade+?