I'm older (62 m) and have been dealing with this since I was a teen, its brutal and gotten worse the older I got. I used to be able to do things by forcing myself, sheer determination. The older I got, the harder that got.

I'm at the point now where I can do like one thing a day, and I'm done. Being a parent while constantly exhausted was the worst.

So interesting to read all these comments and suggestions, gives me hope that perhaps I can be a bit more productive and less negative at the same time.