Keeping organised has allowed me to make best use of the limited time I get at my computer. An hour here, an hour there. I can look at videos during lunch break to fill gaps in my understanding so that I can get started more quickly.
I find that if there is a problem with a personal project, then I find it harder to go back to because it's the path of considerable resistance compared to playing Minecraft etc. The Puffy Little Clouds problem I detail below was one of those; I just forced myself to get on with it.