<human>: Can you give me the gist of the text in a nutshell?

Hi there! 
I'm a 26 yr old female that lives with my 29 yr old boyfriend. We have been together for almost 4 years and been living together for three. We have a very loving relationship and are the best of friends. We recently bought a condo together as well as the sweetest little cat on the planet. 
My boyfriend.... let's call him John, has ADD and was diagnosed as a child. He was briefly on ritalin but his mother took him off it as she doesn't support medicating children.
I recently went back to school to do my undergrad and I've had a bunch of health issues for the past year and any problem we had before has now been amplified. I do pretty much all the housework, initiate all of the sex and all of the conversations regarding the relationship. Anything that has to be done is initiated by me. Because of school and health concerns, I no longer have the energy to do it on my own. I have brought this up with John and when I do so he tells me he gets overwhelmed easily and he sees even the smallest task (including sex) as a big deal (he tells me this is because of his ADD) and proceeds to avoid doing it for as long as he can get away with it. I've tried being as supportive as I can and asked for us to work on a solution together, but over the years not much has changed. Honestly it just ends up in me venting to him about this stuff and getting emotional about it every couple of months or so. I've suggested endless solutions, to no avail.
I feel like I'm treading water at this point. I want to fix my relationship but I need to find a way for him to take this seriously enough to actually work with me. 
What can I do to get through to him?
Thank you for any help :-)
<bot>: My bf has ADD and I'm feeling overwhelmed because I have all of the responsibilities. I need support, how do I get through to him?