[kognate]

You are not useless or weak. You are also more than a collection of job tasks. Working remotely can be very isolating and that isolation can take a toll on your mind and well-being. Self-care isn't something you can skip without consequences. Getting away from the keyboard, getting exercise, spending time with people you care about, taking care of you is a good place to start. Is it burnout? I can't answer that, I can only tell you that other people feel the way you've described and it's not permanent. How you feel is not what you are, and you can (with effort) change your life.

[faceareugly]

The thing I'm considering is quit my jobs, accept playing games and doing nothing for month together with working on my side-project.

[kognate]

You might not have to quit. You may be able to ask for a leave of absence or an extended vacation or something less drastic than quitting. You mentioned in another comment that you are living in a country where language is challenge, that can be very difficult to do. Being cut off from normal communication is a very stressful way to live.

[faceareugly]

Fuck, sounds awful .