My mother told me, I should establish credit at a young age.

Question

Is there a adjective in this sentence?

Answer 1

Yes, there is one adjective.

These are the nouns:
mother
credit
age

One of those nouns has an adjective modifying it. Do you see it?

Answer 2

i know that establish and young are adverbs but i don't see the adjective

Answer 3

Oh, my goodness! You really need to study the parts of speech!!

http://www.ucalgary.ca/UofC/eduweb/grammar/index.htm
Click on Parts of Speech and study the sections on identifying verbs and adverbs and adjectives.

Then tell me which word in that sentence is an adjective.