Yes:
Foggy thinking
Brittle nails-- Well, they're strong but get chipped and peel off in layers. So I'm not sure that counts as brittle.
I've cut out most sugar, caffiene, and carbs like chips, crackers, etc.
Dark leafy greens- I try, but not really. (If that's for iron though, I have high iron)
Sleep- Absolutely not. I have a really hard time sleeping.
Protein- I would think I'm good there, I don't eat protein in every meal, but at least at one.
Energy- I think I'm good there, if it's not lack of sleep, generally I have a decent amount of energy.
When I need to wake up at a certain time- Alarm, eventually though I wake up a few minutes before it. When I can sleep it- I wake up multiple times in the morning, but I make myself go back to sleep because I fell asleep really late. When I wake up, I don't feel like I've been hit by a bus, but often I feel like I didn't rest.
Okay, so I'll not do Maca. Thank you for your help by the way, I really appreciate it