I had this feeling during my 20s, but now in my 30s I just relax and live my life without such thought. I have kids that add value to my life and I work as SRE on k8s clusters. Just relax and do whatever you want to do, even if you just do it for a few days, weeks or months, you gain experience that can be useful for all sorts of things. No need to become an absolute super nerd in just one tiny topic.