I found it very hard to motivate until I got on the right medication. No amount of caffeine would give me energy and drive. Wellbutrin has helped immensely and when necessary, concerta (Ritalin). Then all the guidelines and tricks making lists or whatever really make sense!
Don’t give up reading and looking for the solution for your particular brain type, and definitely ask your doctor for help adjusting medication. There are lots of natural supplements too but they only work for the milder ADD symptoms.
On another note, I found it motivating to have friends over on the weekends and I got the adrenaline rush to clean up 😉
Hope you find your solutions!