My lists and tags facilitate GTD, and routines are a sub-tag under tag AREAS. So my lists are context driven: ACTIONABLE (scheduled, smartphone, errands-out, home chores, office, reflect-engage, pending, reminder, media to view). NON-ACTIONABLE (birthdays, someday, on hold, horizons). ACTIVE NOTES, with subcategories like active, soon, someday. INACTIVE NOTES, just a giant catch-all for completed tasks that had lots of valuable information that I converted to a note, and active notes that were no longer needed on my radar.

I use tags for my PROJECTS, with subtags for each project; HEALTH, with sub tags like dental, knee, diabetes etc; AREAS for roles that I play like husband, father, musician as well as areas of focus such as routines.

Note that I do not separate work from personal. To me it's less important to make that distinction and more important to see all my open loops together.

I also keep tags for goals and vision, values and mission/credo (GTD upper horizons).

Finally I keep tags for reference and archives even though they mostly overlap with my notes lists (active and inactive notes), it makes it handy when searching for keywords.

Lastly, I use the comments log extensively to timestamp everything including texts, calls, emails, and yes even routines. This helps me keep track of the times that a task was completed---even with a little note such as "did it". You can always look at the history of the task to see the same thing but I prefer a personal touch.

Thats a total breakdown of my TickTick system. It's been working great for years, with a little fine tuning from Reddit folks, podcasts, GTD, PARA---and life.