What are your side projects? IMO learning is only useful is it lets you build something.
My main concern is I don't feel as sharp as I did in high school, university, and first years after grad. And I want to continue to have that mental sharpness, not just be good at my job and do it day in and day out.
The more you learn the more you will feel that you don't understand everything and never will. Focus on learning whatever is most relevant to you and your career and don't get bogged down by impostor syndrome.
""Now here's an app that has me by the balls."" as your tweet prompt is uh.. imho not professional.
Are you working on this alone?
I'm working on this with a friend. I'm really curious where this goes. It should be ready in 2 weeks.