Or if you're a bit more selfish (or perhaps you suffer from oneism as someone currently rather famous does), then you might want to expand yourself as broadly as possible to really taste life. In this regard I can recommend dance. (I'm a nerd, and I totally learned to Salsa and Bachata, and it rocks.) Take a class, do what the other sheep do, and eventually become a dancer.
Or choose your favorite instrument that you like to hear. Buy one. Aim for the 30% mark in terms of price range for that type of instrument. Get some lessons. Practice. Join a meetup or otherwise find a group to join and play or jam with. It's a type of communication that most people never experience, and it's second only to sex. No wait, it may actually be better than sex in a perfect scenario.
...and video games.
When I was younger, I was far from the best at interacting with people, but hobbies, and forums and groups surrounding them connected me to people who shared similar interests and helped me interact with them. Through shared passions and enjoyment, I developed better social skills, reduced anxiety, and built life long friendships and relationships.
Make things. Help others. Perfect technique for some simple thing. Relax.
I don't think learning gets to a point to be stopped, though. Information and truth gets updated as others learn.
Start a good, thoughtful blog. Write a book. Edit Wikipedia articles.