Came here to say much the same. I'm older (51), and have felt I was losing my ability to think over the last few years, and also to express myself clearly in c

Came here to say much the same. I'm older (51), and have felt I was losing my ability to think over the last few years, and also to express myself clearly in conversation. But a great deal of this is to do with a number of huge problems that have happened with my step-children and the near-constant onslaught of having to deal with a variety of agencies and not just run off into the sunset. Plus I decided I could self-build an extension to my home. It may well be that the OP has other load that has crept up on him; until you take a step back it's often difficult to see what's happened over a period of years. But burnout is a thing, and sometimes you need to take stock, take a break, and maybe even make some big changes. You're only here once, so it's a good idea to give it your best shot, IMO. As far as anyone can tell.