I try to aim for a daily "rhythm" over a routine—I've found that trying to keep a strict schedule causes me an unhealthy level of stress, and it's a lot better for me to keep things as flexible as I can. Some things have to be done at specific times, of course, and there's no getting around that, but for what I can control, I try to be loose about. Rather than doing everything at exact times, timeframes like "right after getting up", "in the morning", or "somewhere between late-afternoon and before bed" work the best for me! For things like daily chores, even something as loose "anytime, every Wednesday" is enough for me to keep up with it.
I set events in my phone's Calendar app to keep track of a lot of things, which I love because they can be recurring (and I can set how often they recur, which is veryyyy useful for things I do once every two weeks, because I will absolutely forget whether or not I did it last week), and I can decide when and how often it reminds me.
Another thing I've done, as someone who's struggled a lot with anxiety/depression and burnout, is that I add things to my schedule slowly, prioritized based on importance, and give myself enough time to get used to it before adding in anything else. As long as keeping up with the new things feels like a struggle, I don't add anything. When it becomes a habit and I'm used to it, that's when I take on the next thing(s). Slowly increasing the frequency that I do something also helps; like starting out with doing something every other day, and then working towards making it a daily habit.
