New to boas but not snakes need help with Young red tail

[ndheep77]

I adopted a red tail boa today. Need some help with it and found this site. Was told it's almost two years old but it's way to small for its age. Was told they were feeding it fuzzy mice a couple times a month. Looks fairly health.

I have moved it into a plastic tub instead of the aquarium it was in.

Any advice would be appreciated.