One of my favorite scenes in a movie is James Bond with Pierce Brosnan. Bullets are whizzing by him and he just so of gives a mildly annoyed look while focusing on what he’s doing. It’s quintessential cool.
There is so much available to you. This is good and bad. I hope you choose knowledge, beauty, laughter, etc. Guard against getting caught in a loop of destructive $@!#%: hate, drugs, gambling, porn, etc. The world is full of beauty and it’s full of gross sh*t. I hope you choose a life that seeks out beauty.
Read biographies. So much to learn and discover by reading about the lives of great men and women. Ducksters.com is a great resource. Amazon and The Learning Well also have great lists. Just Google "biographies for kids."
Depression can look a lot like a bad attitude. Try reacting to his chronic edginess with “Sounds like you’re in pain. You can come to me about anything, any time.”
Never pretend o know what you don’t know. But you can bluff your way through a lot of interviews just by doing a 30 minute Google search. Research the company, the industry, its governing body, key terms, awards, criticism, etc. Check out their social media.
Don’t Just “go along for the ride” in your relationships. Be clear about your intentions and act accordingly. It’s part of being a man. A GOOD man. Sometimes you just need to have a talk and make sure you’re both on the same page. It won’t $@!#% you!
Check out fencing. Local fencing club has classes for kids and adults all ages. They also do birthday parties, so that might be something different that would be fun for him and his friends.
Think about building a career. Take low-paying or no-paying jobs that will give you the experience you need to build it. It's not all about the paycheck, especially when you're young and don't have too many bills to pay.
Grandpa didn’t drink coffee, but when he was in Korea he used to drink it just so he could hold the cup and keep his hands warm. (During the Korean War be enlisted in the Marines with a bunch of his buddies right after high school.)
Great article on making math fun:
https://www.washingtonpost.com/lifestyle/how-to-get-reluctant-children-to-embrace-math/2014/03/04/4be99e46-959d-11e3-8461-8a24c7bf0653_story.html
You gotta play with them. Down on the floor, at the park, in the water, in the snow. Connect through play, it will be the foundation of your relationship.