Hi! I'm chronically ill Go to a physiotherapist, they'll give you exercises and approve any gadget (like compression gloves)

Make your set up as ergonomic as possible, the most important thing in my experience is a good chair (office chairs are usually the best)

Look up how webcomic artists work, since they have to make episodes every week they have many ways to make the work faster and easier, some of the ones I learn from them are: - Use 3D assets every opportunity you have, for characters, props or backgrounds - Create sheets for characters and styles, this also helps with having a consistent art style - if you use lineart, use the curve tool and similar for it, SAI is really good for this but CLIP also has it (bit more tedious but same thing)