Footloose, I recommend an assessment for the various mobility aids. There are a lot out there, and it's not fair on you to pick up all the caring responsibilities when with a bit of effort he can do things for himself.
You can get medication boxes, every day of the week, with different times, and you pop the medication in, set an alarm on your phone and then go and take the medication. Chemists will even do them up for you if you want. He has to stop being so childish and take responsibility for himself.
You can have rails put in in showers and toilets, seat raiser for the toilet, higher chairs so he could 'rock out' to stand rather than trying to get up, walking sticks with 3 points so they stay standing next to you and are then when needed, button hooks to help you do your own shirts up, bottom wipers, back washers, etc.
There are lots of them out there, you shouldn't be doing everything for him.
One other thing of benefit, is a hot wax hand treatment. Men are usually resistant to this as it's a 'beauty treatment', but my rheumatologist friend highly recommends it as the pain relief and additional mobility it brings can last weeks for some people.