The train is the longest part of the journey, and seemingly one of the calmest (compared to subway and that short tram ride). Are you able to do any deep work (reading, learning, brushing up on CS, etc.) during this commute on laptop or phone?

I don't think anyone can bear through that commute for extended periods of time, and trying to bear through it is a fool's errand. The quickest way out of your current situation for the medium- and long-term is to get a job in tech that allows full WFH/remote. In the short-term, it would be looking for new work or new accomodation, but I think that's pretty hard given what you said.

So, I would look for reasonably low-hanging fruits in tech such as webdev, specifically front-end - it's a great starting point and you can make some very tangible side projects for your portfolio to showcase. If you want any advice on getting started or some mentorship/code reviews/resource recommendations, I'm more than happy to help (for free of course) - feel free to shoot me an e-mail (in profile) anytime!