I have done this too, showed up for an appointment on the wrong day or the wrong time. I keep my appointments on the refrigerator now, and sometimes look at them several times a day to make sure I am not forgetting any. and even so sometimes I still get it wrong.
I do not see how you attend classes at a time like you are having. I could not do it. My mind is just not that capable anymore. I have done it before, years ago when my youngest daughter was 9 to 14 years old. She is 39 now, and even then it took me five years to get a four year degree.
I admire your determination, standing and fighting with so many things going haywire for you right now.
Lupus diagnosed 1996, Heart by-pass 1998, breast cancer 2000, stroke2002, vascular surgery 2005, heart attack in 2007, and had a stint put in, Sjogren's Syndrome 2008
aspirin, multivitamin, Arthrotec , Meclazine , plaquinil, Metoclopomide, Doxepin , Metoprolol, synthroid, Amlodipine, Crestor, Lasinopril, Plavix, phenagrin, Restasis