I know of one person who used to work where I do and he used his free time to learn computer programming and then he became much more valuable to my boss fixing software problems in the system and finally he started freelancing and now makes far more on the outside as an independent consultant.
Actually now that I think about it, I know of two people from my place who did that and a third one who came already with such knowledge but increase his value through expoerience and learning and went out on his own and now makes at least 3 times what he made, at his old job in the place where I still work.
There are many ways of learning to adcvance your career even if you want to change careers thare are many ways to learn online so your time is not wasted just sitting around or playing games.
Then of course there are websites to study Torah on, as well.
It reminds me of something I heard when I was in yeshivah about a gadol who was asked how he became so great and he responded “in 3 minutes”, which he explained was the 3 minutes waiting in line or waiting while a simcha started or anytime he had a ‘free’ minute he got in just a bit more learning and he had done this in yeshivah inbetween shiruim while others were relaxing and taking it easy.