I Am 26, Work Full Time And Am

I am 26, work full time and am a full time college student. I survived a traumatic brain injury and emergency brain surgery five years ago and struggle to keep track of deadlines for school. Luckily they work with me since they are aware of the issue. Doctors appointments are literally impossible to remember. I can set reminders on my phone, but I'll dismiss it and forget. I'd like a robot that I can tell due dates for school and appointments and then be able to ask it what I have due for a specific class or if I have appointments coming up. That would be incredibly helpful.