Me too. I feel failed, I am currently 15 and got into AEwVS and indie gaming since I was 12. Didn't get any hobby, knowledge or anything worth talking about. I don't feel proud of anything, I am not happy about my soon birthday and not happy about my future in general. At least you know how to code or write or make games or something. My tip for you is be more fluent, change more, see every day as an adventure. Do something differently each time and you won't be miserable, one day you have to cling to your old days and next days slip away into unfamiliar thing, see your life as something fun otherwise you are gonna be like me. I still ask myself "Do I even cling to my old days? Or am I just slipping away into an unfamiliar thing?" everyday.
According to the personality test, it's particularly in a logician's nature to explore lots of different niches.
Yet I usually just go on YouTube even for that.
I need to actually apply my knowledge for once rather than just continually assimilate more and more without doing anything...
Get motivated to do something and do it. What do you want, guy? What do you want?