You're definitely not alone!
For the remembering part, I rely heavily on my iPhone calendar for reminding me to do things and when. Everything from taking my pills, to feeding the dogs, to appointments, even scheduling my laundry.
I find it also helps with motivation. I'm careful with scheduling to make sure there's not too much to do all at once and not too much in a day, if possible. But if the phone says to do it, I try to go do it, otherwise I know things will pile up and get unmanageable and overwhelming.
If I'm having a really rough day, things are easy to reschedule to the next day or whenever is appropriate.
I also keep all sorts of notes in my phone, people's names, addresses, how much cash I withdrew and where I put it, everything. I'd be lost without my phone.
The other thing that helps me with motivation is right after a nap or when I first wake up in the morning is to do a few things, even just a couple little things... if I know I have a harder (for me) task, that's when I plan to do it... like if I had paperwork to do, that's when I'd schedule it, that's when I'd have the best luck of getting it right the first time. I find by planning to do things like that when I'm at my best, its easier to motivate myself to do them.
Starr