Get a higher level really. :o Also, prestige every time you unlock a new floor. As soon as that type of message pops up after you complete a dungeon, leave and reset your progress. Continued...
Once you open a new set of floors start rushing the floors from two sets ago on complexity 1. (i.e. once you are a couple floors into the furnished set, start rushing the frozen floors)
The amount of tokens you get is the experience you get from a floor divided by 10 so obvy wont get many at level 36 good thing there there aren't many rewards at that lvl anyways.