How do you stay motivated when learning something new?

I am lucky that being semi-retired and having stepped away from a full time career, learning something new is pretty much my choice, so I learn with great enthusiasm. But what I have realised is that having to learn things that may not have fully engaged my happy head spaces in the past has given me a bit of a super power of just diligently getting on with it. Recently I had to learn, at speed, the rules and advice for communal space vegetable plot gardening. Not exactly allotments but definitely strip horticulture, something medieval people knew about. I found it fascinating and like a lot of things it is a lot less about the fruit and vegetables and a great deal more about managing people.

So I would say finding fascination is the motivation for learning new things and just being diligent.