If you're familiar with the basic Chinese numbers and the numbers, you're ready to try your first Chinese tongue twister. (Google)
Here is a tongue twister I know that you'll like. You can say it while walking Or riding your bike.
See silly Shrek sulk sadly. Shrek sang same silly songs softly. (Google)
Many tongue-twisters have two or three sequences of sounds, then the same sequences of sounds with some sounds exchanged, e.g. "she sells / sea shells". (Google)