Yeah I had quite a few motivational Issues the last two years or so. I am trying multiple ways to get out of that low point since when I originally noticed that it happened.
And some ways did help at least a little bit (reorganizing Stuff that I had on mind for a while, drawing Stuff that I wanted to finally have a more concrete Image for, etc), while others (such as playing Factorio or Dwarf Fortress) did not really help (which is why I stopped that specific attempt in Summer).
Right now I am attempting one of the last 2 Ideas that I got, which is putting most of the regularly watched Youtube Videos off for a binge watch on Sunday, so they dont interrupt my flow whenever they normally come out.
The very last Idea that I do have, which I am personally not a fan of at all, is actually getting into shape, at least when it comes to actually physically moving/walking from time to time, not in the sense of losing weight. I really hate physical activity, and most of the time I hate being outside too depending on weather.
But even if I resort to this, it would basically have to wait until Spring next year, because my Lungs cannot handle temperatures below 277 Kelvin for more than 5 minutes, which might also be caused by the lack of fitness.