I loved my ritalin, also. I took Mededate 20mg 3 times a day 7am, 11am, 3pm. Even bought a watch with an easy to set and reset alarm so I would hit those times exactly. That helped with the ritalin dumps as one dose wears off before the next kicks in.
I never had withdrawl symptoms when I quit. Quiting caffeine was always more painful than stopping ritalin.
I functioned on that for 6 years before switching to XYrem. My doc wants me to add nuvigil or provigil. I would perfer to add ritalin, cheaper and I like the effect more. But he won’t prescribe it since I am in my 40’s and it can affect my heart.