Two words. Train Buddy.
Every hobby I have; at least 50% of the fun is sharing it with someone else. Cars, Hunting, Golf, Trains. There is nothing social about just doing it all by yourself. As for creativity, friends will give you feedback, and ideas.
I retired two years ago January. EVERY DAY, I set a goal to complete SOMETHING. Some are simple tasks, many are more involved. But, it prevents be from spending the day doing nothing.
