They are good tips.
I usually do things differently, but I agree that setting goals is a good thing.
I read some advice in a writing book (sorry can't remember which one) that suggested you work out where you want to be with your writing in five years time - and then work on getting there. It makes sense, I think. For example if you hope to have three books published then it will help if you actually write three books.
My personal aim is to be able to live off the money I make from writing! OK, there's no guarantee of complete success, but if we know what we want and work towards it, I think we'll achieve something. Maybe one day I'll be able to reduce the hours I spend at my regular work.
Breaking the goals into months is something I'm going to do from now on. Every time I write something that I can try to sell, I'll be a step closer to achieving my dream.