I know what you mean. There are tools I see everyday and I ask, but why? I have started to just ask, why not? There doesn’t always have to be a use case and sometimes people just want to create shit. They don’t even care if others use it, but want to share it anyway in case there is that one other person that does.
Don’t do a blue collar job. Go into a trade school and do that instead. Drive a truck, be an electrician, plumber, whatever. These are still good jobs and you actually might be happier doing something like this when compared to working in an office. At least you feel like you are doing something and you can see what you accomplish right away.
I’m much older than you and have been working in an office since I can remember. I have been really thinking about doing or at least learning a trade even though that would mean a huge pay cut for me.