Moved from Plex to Jellyfin about a month ago. While it obviously isn't as polished as Plex (yet), it has come a long way in the last few years. I remember trying it about 2 years ago and the experience wasn't nearly as good.
Biggest problem for me was recognizing anime, Plex usually does a good job with it but Jellyfin doesn't. My solution is just to rename (or rather, create hardlinks with proper file names and structure) with Sonarr.
Second biggest problem has been the Android TV client. I find it clunky and the built-in video player doesn't support HDR. You can use external player (like VLC) or set up Kodi with Jellyfin add-on which I've done, but it's still not as smooth experience as with Plex.
Overall I find it better than Plex, with active community pushing new updates constantly.
If jellyfin is still like Emby which I use I would pick a different metadata server for you anime, tvdb is rubbish, themoviedb is great all around, and for anime you can point it at animelist which will figure out near anything
For me programming motivation comes and goes. I might code personal projects every day for a few months, then lose all motivation and don't code anything (outside of work) for a few months. Took me some time to realize but it's completely okay to take breaks, it doesn't mean that you've lost your motivation or passion or whatever.
One thing that helped me balance this was to code only stuff I really wanted to code. Sometimes I get ideas which I think are great, and the very next day realize that it was just a momentarily over excitement. I think and plan the project for a few days before starting anything concrete
