Far beyond gaining stuff to stock away in your brain, how about developing a new skill? If not something new, why not take an existing talent to the next level?
Demolish the obstacles standing in your way, the things that are holding you back. Most of these obstacles are self-made—excuses, over-burdened schedules, distractions, fears, doubts—so that means you’re in control.
“Anyone who stops learning is old, whether at twenty or eighty. Anyone who keeps learning stays young.”
Don’t be concerned with becoming the best, concentrate on learning something useful or interesting. What’s a skill you wish you’d had the chance to hone? What’s a talent you’ve always regretted not building? It’s not too late.
Learn to build something with your hands. Take private lessons and learn a new instrument. Audit classes at a local college. Learn to code. Take up running or cycling, or even unicycling! Write a novel.
Look around and ask questions. Why do things work the way they do? What motivates people? How could something be done better? What would you do if you had to start a new career and could do anything you wanted?
Pursue those answers.
Maybe there’s nothing new you’ve really wanted to learn or anything that interests you enough to spend your time pursuing. Unless you’re an unimaginative slacker, that probably means you should get out there and start teaching. Check in with your local library, community center, or churches to see if you could offer a community class of some sort in one of your fields of expertise. If you are an expert in some sort of hands-on trade, consider volunteering at a local high school or community college, or start to teach people out of your home, garage, or workshop. If the idea of standing in front of a classroom or teaching a group intimidates you, think about taking on an apprentice or teaching one-on-one lessons.