This is a tragic disappointment a lot of (if not most (if not an overwhelming majority (if not literally all))) artists experience at some point early or late in their professional careers.
I taught art for a long time and I would always try to frame this inevitable experience as an important moment of growth. When you have to form a deeper relationship to your creative work and think strategically about how you want to support yourself long term.
There's no getting around it, it's really hard seeing what this is doing to visual artists. The few of us that could find good work doing what we love...