An analogous situation prompted me to start using buffer-to-date tasks.
For me, making consistent daily progress on multiple goals was hard because it required so much context switching. So instead, I dedicate each deep work period to only one project, and use it to build up enough of a buffer to last through the deep work periods of the other projects.
In your system, maybe that looks more like only adding tasks for one of your mini-projects each day, instead of adding one task from each of them?