I relate totally. I don’t have any true words of wisdom other than to say I relate. It’s frustrating and something that always feels like an internal fight. I generally make lists of what ‘needs to be done’ and those days without any motivation I try to force myself to focus or appreciate getting some ‘small things’ accomplished. When lack of motivation hits, any accomplishments can be be big to you and it’s ok to treat small things like accomplishments when you feel like it’s all you can do. At least that’s my take.