This is a really common problem with TBI.

When I was first injured, I had to be prompted to do just about everything. Left on my own, I'd just sit and stare.

I do better now, but it's still a problem. I also have this weird thing where I sometimes just can't do something. For example, I have Christmas cards I just haven't opened. They're just sitting on my desk. When they aren't close to hand, I think, "This is silly. I've just got to open them" - but then I don't. My psychologist says this is typical TBI behaviour, but I haven't heard it from anybody else.

Anyway, back to volition. I found one thing that helped me was reducing the number of things I had to decide in the day. After my TBI, I became very indecisive and, confronted with choices, I'd feel overwhelmed and just shutdown.

To make my life easier, I eliminated and/or simplified some unnecessary decisions. So I don't spend hours unable to decide what to wear, I have two outfits: I wear one, while I wash the other.