If you were my student, we'd start with an assessment of where you are at the moment, where you want to go, and how you prefer to work.

We'd then identify what particular things you needed to cover to get to your goal, and - probably with a basic course book for whatever you're working to - work our way there.

With each topic to be covered, we'll identify what it is, why you need to know about it, how to do it, then practise and review it until you're secure with it.

I'd make sure it's not too much of a grind by having a variety of activities including some creative and some fun - unless you hate the idea of that in which case we can make it as boring as you like.