There are 31 chapeters in Proverbs.
Read one chapter a day.
Every day.
For years.
Then you will not become a mocker or a fool.
I’m trying to learn that now. I’ve been trying to get my son to learn it while he’s still a teen.
Be sure to read some rabbinic commentaries on Mishlei (Proverbs) to gain a deeper understanding of those very wise words.
If he’s in high school try to get him into competitive sports. I coached HS baseball for three season, so I’m partial. But involvement in any such sport at that age can be very formative for later life, and odds show his chances of future success - even in this barryworld - are better overall.
Best of success to Him and to You.