feel free to completely skip this unsolicited advice obviously but from one extremely creative and artistic adhder to another here are my two biggest tips   1 make the thing as tiny as possible   painting use a 2 inch canvas sketching cut some paper into the size of a sticky note sewing doll scale it will feel good to finish and it will feel finished if you literally run out of space andor have a fraction of the distance to go   2 use shortcuts   i dont mean make it shitty i mean make it fast can you glue instead of sew can you use acrylics which dry fast instead of a medium that dries slowly or needs many layers can you allow yourself to use a pattern tutorial reference that gives you every step   im inclined to try to force myself to imagine the steps because it feels faster it isnt or feels like i should be able to intuit it because everyone else does they dont so when i say shortcut i really mean instructions and adhd-friendly materials but it sounds like im hacking the system and thats a lot more fun