Very curious myself, I have the same issues. A lot of planned drawings in a pile and so many are little more than roughly sketched poses. So I'm curious how other people get the motivation too. It feels pretty random to me when I get motivated. Just a few days ago I had stayed up later than I initially planned, then just kinda said "screw it, let's draw something while I'm already up late" and did most of a drawing.

A part of me wants to believe that if your mind really comes back to the task you want to do, it will eventually be done.

And it's even harder when you have so many hobbies and may be feeling a hyper focus on one thing over the other thing you "know" you wanna do but the thing you "want" to do wins.

So sometimes I'm like "Imma let my body lead the way" sort of view. But it's kind of counter productive to things you have to do. Which is the part that really sucks.

I feel bad that sometimes my commissioners will get art in like two weeks and others have to wait months.

Getting a physical planner definitely helped. And being on my prozac consistently helps to.

But sometimes I even forget to take my meds XD

Another thing I try to do is set my future self up for success. Get my cleaning out the way, take a look at the books, and then access what feels like a priority to me.
Prioritizing systematically so it doesn't feel like a manic thing helps. Aka making a list of things I want to do , in order of like what I feel I haven't spent enough time on lately to something I've done a lot of. Then access my mood and pick from there.

If I get decision paralysed, I also throw up a roulette wheel and let the universe decide what I should do.

I rambled a bit there but figured I'd share more insight from my P.O. V.

Ngl I pace and daydream to music/audio a lot lol

I look at literally anything in the world and ask myself "do I have any OCs that fit this vibe," or I just let any of my fandom hyperfixations take the wheel for a bit.

I should listen to music when I work more. Some songs I'm like "damn I could make something fire" but I would also wanna listen to that song to the point I'm burnt out on it and won't wanna listen again and I hate doing that to music I like XD

Playlists for vibes are your friend! Like "These songs make me feel (x)" or "These songs give (Y) aura"

Helps me out anyway lol