"I feel like crap 50% of the time. I force myself to work when I don't feel well."
...Okey dokey, Ryan, slow down. I'm old, I've been through alot and sometimes tact is a waste of time. So here goes.
Admit to yourself the limitations on what you are going to be able to do homesteading-wise. You sound fairly accepting of your mental illness, but double check that. It sounds to me like you're looking for a work-around.
I am a recovering alcoholic. I have type 2 bipolar disorder and lots of other fun things. My best friend has dissociative disorder, anxiety, manic depression, PTSD, alcoholism, and drug addiction. She suffers terribly. Some days she can't get off the couch. Most days she can't take a shower. Medications that she has been on for 25 years have caused a tremendous amount of damage to her internal organs. She is grateful for an hour she can do anything.
Many recovering alcoholics remind ourselves every single morning that we are alcoholic, because our default setting is to forget that (that's a bad thing - shit goes south pretty quickly). Many of us have experienced trauma and have mental illness to manage in addition to addiction. We take life 24 hours at a time. That's all. We are not whiners, we are admitting to ourselves we are not like other people. Boy, people that don't live inside our heads hate to hear that.
90% of people don't understand. They come up with a lot of pablum and lighthearted hopeful advice but unless they walk in our shoes, God bless them, well, we just have to wait for them to stop talking.
There's no magic bullet answer. When you have a complicated mental and emotional life, it's important to design your life to accommodate that. Sure, you can make a check list and prioritize tasks, but when shit goes south smack in the middle of the day and you can't work anymore, that to-do list can become a source of shame. It doesn't mean a list is a bad thing, it just might be a bad thing for you. Pay attention to that. Walk out the door and do what you want to do.
And treasure the times that you feel good, for they are precious. Please try not to forget that (that's a tape it on your mirror thing).