posted by Debbe .
Write several sentences describing a recent interaction with a friend or family member about personal finance or credit cards. This interaction may be imagined or real.
Before going to college my son got (his) first credit card.
(He) now has (himself) in a lot of debt.
(We) tried to tell (him) not to run up his credit card debt.
Could someone tell me if I have this right.
Your sentences are correct, yes.
I've seen this assignment before, though, and you need to double-check to see if there's a minimum number of personal pronouns to be used or if you are supposed to use a minimum number if different personal pronouns. In your sentences, you've used one first-person pronoun and four forms of one third-person pronoun.
If there are no minimums, then you're fine.