Do you have any other support system than your BF? Can you afford to have someone come in and clean for you? I'm so sorry it's so hard for you right now. It sounds like you are doing all the right things you just need more external help than you are getting. It's hard to come from a nice cool controlled environment back to lists and lists of things that need to be done. I would feel extremely overwhelmed in your shoes even if I broke the chores up into bits.

I don't know about you but my mind always wants to wander ahead to what I haven't accomplished and how far I still have to go. So even when I break chores up into steps my mind looks at how many steps there are and how tired I am now....it's just a mess.

IF you need the PRN take it. Right now it sounds like you need rest. Please be gentle with yourself.