Divide every big goal into small parts, sit down and divide your ultimate goal into small parts, then those goals into small parts, and then those... Hopefully you will now have such a small list that you see what you need to do this week. And then you do that. Forever. It's really hard. But that's what works best for me.
Thank you. I'll give it a thought. Right now, I must admit: it both does and doesn't seem like a good idea. For the former, I'll gain the proper insight into the real amount of work I've put into it. For the latter, - how do I deal with things I couldn't foresee? Adding them on the list will merely increase the amount of work I am to do, which can be daunting if, for a new challenge, the list just keeps growing and less stuff gets done in the meantime because of the seeming pressure of the goals.
Usually when you do this, you find you don't NEED to do a lot now. If something comes up you just look at the "list" mental or physical.