Same here, but I don't know if I had ADD or not (never test it).

Well in my case, I'm able to keep up on my attention on the routine, but.... only on few days, mostly on first 2 weeks. After that, I have no motivation and goofing around instead. Until 2 weeks later, somehow I'm able to set up my attention, inspiration, and motivation again. This goes like cycle to me.

Hope I can help. I use website name chains.cc. It's not to "cure" your attention, but it's good to motivate us to keep track on the routines.