What you're feeling is perfectly normal. I recommend The DaVinci Method -- in your case just for getting that sense of normality, not that you need to be unblocked. Also, you kind of sound like you're going through the 30-year crisis in psychology or first Saturn return (which is actually more like 29 years) in astrology; if so, that would just add to it. Since you're too complex to be defined by any one thing, maybe try defining yourself as a polymath? Regardless, I wish you the best!