I set alarms on my phone until I got in the routine of taking meds with breakfast and before bed, and I always keep the medicine organizer visible in the kitchen so I see it every day when I get up and when I go to put my cup from the day in the dishwasher. But that also builds on those routines as well.

The app AMdroid has been essential since I can set different sounds for different alarm categories and make them more or less persistent anf it's easy to skip one when I remember without having it annoy me later when it goes off, but still not have to disable the alarm entirely and forget to turn it back on. And it's way more reliable than Google Tasks or some other takes apps, and is an alarm sound that I have to stop instead of a single notification sound that I'm likely to ignore.

Anyway, there are other apps with similar functions. But the right app can make all the difference. I have it set up for several things I do everyday since I can't form habits, at least until I form a reliable routine which usually doesn't happen unless there's some event to trigger it that I can't ignore, like waking up or going to bed.