I'm pretty good at reliably taking my meds, but occasionally I forget. Especially my morning meds, which if forgotten for most of the day, I simply skip. If I forget my evening meds at my usual time, I eventually remember later, mostly because I can't sleep. If 2 am rolls around and I'm not the least bit tired, I remember. I do take them then, not just to finally sleep, but my mood goes south rapidly. By 4 am, I would have already destabilized a bit.

I keep a dose of both my morning meds and evening meds in my pocketbook. I used to set morning and evening med reminders on my phone. I have my meds in a box on my dining room table and associate taking them with meals. Breakfast: First sip of coffee then take meds. Dinner: After first bite take meds. Habit makes it automatic. It's mostly when my routine is disrupted (eating out, travelling) that forgetting happens.