Try looking up kinesthetic learning styles and apply them to your study routine. Like for instance I found walking and reviewing note cards to be helpful. Art often involves the movement of the body which can help with staying engaged. (Another helpful thing is finding someone/something to verbalized content to and try to teach them the material)

I have a really short attention span too. I can stare at a sentence for 10-15 minutes and suddenly realize I should be working on something. I'm not dx but had similar struggles in uni