TBH, IMO--it seems like tech isn't for you. You seemingly have a good position that you earned--But you hate it. You have to be honest with yourself. It's impossible to know what a profession is until you actually do it. I say this too because you're only spending 10 hours a week on your side project. If you really enjoyed it, you'd blow off spending time with you GF to do your thing... I know I did. I'm not saying y…
You know that you can like more than a thing in your life right? And that you may like one more than the others, all while still enjoying the others one enough to make it a career, right?
You seems to have a really unhealthy relationship with your passion, you may want to check that up before it become an issue.