when you turn black

Today I want to talk about an issue that I think many of us struggle with: overcommitment.
For the last few years I've held myself to an impossible ideal of doing ALL THE THINGS every day. There are so many things that I enjoy doing, and so many things I feel like I ought to be doing, and so many things that I actually need to do; surely I can do them all every day, right?
Wrong.
I've come to this realization unwillingly and recently. I've restructured my weekly to-do list to be more feasible. But still, I somehow constantly feel overcommitted and behind on things. How do you deal with it? How do I deal with it going forward?
I want to be a good person. I want to cook healthy meals and make my own fermented foods and keep my house clean in an environmentally responsible fashion. I want to mend clothing that wears down, so I don't create so much trash. I want to spend quality time with my partner-in-crime and my cats and my friends, do a good job at work, make a little extra through freelancing, and write and make music regularly. But something in there, or maybe several somethings, need to give.
I suppose the point of this ramble is to ask you, readers: How do you streamline your lives? How do you simplify but still get everything done? Should I be eating fast food more often to cut down on cooking time? Let my house be dirty in order to have writing time? Sell my soul to some demon for the ability to get it all done? Steal Hermione's Time-Turner?
I'm open to suggestions.