Im hearing a zillion answers on how many years a bearded dragon lives to be, whats the longest? mines 25 yrs..?

he's male, his name is buddy and i rescued him from some guys shop... poor guy was left is darkness most of his life, and from no vitamins from sunlight or any calcium of the sort, what little muscles he did have turned spongy... he never moved from one spot on a 4 foot tank... he's blind in his right eye, but can see shadow... he has an infection in his left eye, but see's fine and is in no pain, his nails where an inch long and where spiraling and dead... he has to be hand fed because he cant do it for him self, he can nither shed himself either, i have to soak him for hours for a week... AS OF NOW he has a ceramic heat lamp plus a heating pad and nice big light bulb, in a 6ft tank, he has a giant water dish and no longer lives in sand, its smoothed bark chips, he is fed fruits n veggy's plus a Pinky every two weeks... he is fat and squishy and now can walk around by himself... my cat hates him, she is very jealous lol he disliks tomatos very much, but loves red gs and cherries the most <3