I am never bored, never short of anything to do and I don't even ever feel lonely. I am quite gregarious and I get out and about a lot, but sometimes it is just wonderful to be on your own.
One trick, known as the journey method or 'memory palace,' is to conjure up a familiar space in the mind's eye, and then populate it with images of whatever it is you want to remember.
I certainly would have regretted not getting into wrestling. It's been very lucrative for me and I've been fortunate to get into it and make money and not do anything stupid where I invested in something that collapsed.