Being an artist with ADHD is pain...

I'm what consider myself an intermediate Digital Artist and I've been doing art for about 3 or so years. Yet, no matter how much time has passed or the courses I take, I never feel I'm advancing my abilities. Doesnt help that with ADHD it's hard to focus, keep yourself motivated and maintain information of what you've learned. And the pain and jealousy i get when I see artists around my age doing great art on social media is atrocious.

I've been buying some artbooks on perspective, but it's so hard to again, keep focus or interest and not be overwhelmed by the information they often than not keep gathering dust.

I really want to become a great artist but I feel like I'm never improving. I need your opinion on the subject matter