How have you changed in the past 3 years?

[Froge]

It depends what gets my interest next. I've been struggling with writing recently, motivation has all went down, for numerous reasons.

This is everybody's problem. Motivation never stays constant. However, I don't suggest jumping interests around unless you absolutely despise your current hobby.

For writing, it's important to have self insight. What motivated you to write the story, and why did you stop? The way I see it, if any more than an hour of your day is spent not being productive, you can convert that time into hobby time (the remaining hour can just be quiet reflection, or deciding what to do next). It's not actually important to be motivated all the time - that's impossible - but rather to maintain constant work ethic. Just keep at it and eventually your novel will be done.