I used that combination, too. But I have settled for only the useless gaps extension for now. PaperWM was behind Gnome version too long and now I have seen there is Niri getting better and better. I will switch someday, I guess. It has the same concept as PaperWM, but is a scrollable/linear WM from the ground up.
You’re young. I switched jobs and profession twice already. For me, it was the other way around and back again. Came from programming (10 years) then Linux adminstration (2 years) and decided to do Geography. Studied it and the programming skills helped me there, too.
There is always something you can take with you to the next job or profession.
I wasn’t lucky to get a job where I can use my Geography studies so I am now almost 2 years in web programming. I did not have much experience in the field, but I found a place where my Linux adminstration knowledge is useful and I improved web backend programming skills (PHP) on the job.
Soft skills count, too. Reliablity, ability to work in a team. Recruiters look for those things.
And btw. I got my Linux knowledge initially only from personal unpaid studies and projects in my free time.