Knowledge is not power. Knowledge is only potential power. Knowledge that is not put into practice is useless.
Knowledge that is acted upon is powerful. I've spent far too much time acquiring knowledge and far too little putting it into practice. This has cost me greatly.
Other than time (which is precious) learning is low/no risk. Maybe that's why I enjoy it so much. It isn't until I take steps/begin practicing what I've learned that I will potentially encounter failure. Potential failure scares me. Maybe it's my primordial brain trying to keep me safe but is actually sabotaging my progress or maybe I've had bad experiences with failures as I child that have created crippling insecurities. I don't know.
I do know that at 40 I've learned more than I could possibly apply in a lifetime and it's time to stop studying and start putting into practice what I've learned. Ironically I know I will end up learning a lot along the way only wishing I had gotten started sooner.