I'm a 43-year-old guitar player. I understand what you're talking about. A lot of us search for daily activities that will bring us the fulfillment that we're looking for. When I look back, I can see clearly what I should have done with my time- at least as a long-term goal.
"CREATE ORIGINAL, FINISHED PRODUCTS"
A saying I've lived by is "You get good at EXACTLY what you spend your time doing". If you spend ALL of your time building your techniques, you have good "tools", but how you utilize those tools can end up being immature. Sorta like a great workshop that has never built a guitar. I didn't spend enough time working on my own music because as I got good at playing, I fell into the trap of wanting to impress people, including myself, with my skill. It feels good to be able to play well. That feeling is sort of a immediate gratification, like a drug. When I tried writing my own music, it ended up sounding too "beginner-ish" for my taste. I wrote some interesting parts to songs, but nothing finished. I didn't spend much time on it because I didn't want to feel frustrated.
My oldest son is in 3rd grade right now. He's the best piano player in his grade, and probably the next couple of grades. I'm encouraging his creativity every chance I get. Soon, we'll start recording some songs on the computer. Some people would have him wait until he was really good and could write better music. My feeling is that we all have to be a beginner before we can be advanced. Now is the time for him to be that beginner and write simplistic songs. His songs will get better with experience.
My advice is to continue working on technique, but work in goals for writing (and completing) your own music. Remember to let yourself be a beginner, and have confidence that experience will improve your abilities. FINISH songs and move on. Get yourself a way to record yourself and do it regularly. I used to say that performing an hour on stage was worth 2-3 hours of practice because you are more conscious of how you're playing. Recording is similar. You can't be sloppy when you're recording.
...just my opinion.