Enough comes after adjectives (without nouns) and adverbs.
adjective/adverb + enough

• Is it warm enough for you? (NOT . . . enough warm . . .)
• You're not driving fast enough
  

Enough comes before nouns.
enough (+ adjective) + noun

• Have you got enough milk? (NOT . .. enough of milk.)
• There isn 't enough blue paint left.
  

We use enough of before pronouns and determiners (for example the, my, this).
enough of + pronoun We didn't buy enough of them
enough of + determiner (+ adjective) + noun

• The exam was bad. I couldn't answer enough of the questions.
• Have we got enough of those new potatoes?

We can use an infinitive structure after enough.
... enough... + infinitive

• She's old enough to do what she wants.
  
• I haven't got enough money to buy a car.

.. . enough... + for+ object + infinitive

• It's late enough for us to stop work.