What are the most efficient methods for learning new skills quickly?

What do you mean “quickly?” If you enjoy what you are doing time seems ephemeral. I mean I started running at the age of 5 or 6 years old I loved it and practiced and practiced. I had jobs that required manual labor. I walked several miles to the job. I trained at night besides daytime training. I got awards for most improved runner on numerous occasions. This taught me if you want something you can hone your skills, if you have something to improve upon. How about if you are as slow as can be? Maybe, distance running is easy pickings or maybe sideline work promoting the sport of running and athletic endeavors is your calling.