How do you organize your week with multiple side projects?

Personally, I have the same behaviour of you and for myself I don't find it to be the best strategy.

What I've found to help me a lot (but I still don't apply too much) is to take a "journal" about any adjustments I have done to my project. This is because working on coding problems and switching to other tasks makes me forget what I've done and I have to read the code again to understand what was going on. A spreadsheet with three columns 'Job' - 'Date' - 'Update' works fine to me.

In addition, I can give you an answer a person gave to me. He said that he found very difficult to switch from a task to another, for this reason, he uses the same tools for every project: in his case, he uses Github not only for the code but also for the Project Board (https://help.github.com/en/github/managing-your-work-on-github/about-project-boards), instead of Trello for example, to manage all of them.

Some time ago I found this https://dev.to/jpcs369/organizing-your-life-using-github-6an and I replicated the work: I created a personal repository with all the links and stuffs I need, put it as homepage of my browser. I linked GitKraken Glo Board for the Trello-like board on my phone, so that I use issues as To-Do list.

Honestly, I take it day by day, hour by hour. If someone has a secret formula to this, I too would love to know. But in the meantime, just know you're not alone. This is a bi-product of being highly driven people, which means that you're heading towards great success. Keep up the hustle.