Okay algebra and geometry but other than that, spend time practicing addition and subtraction, multiplication and division. That’s 99% of the math you’ll need to know if you’re not going to be an engineer, etc.
Look for answers where truth, laughter, kindness, beauty, compassion and love are found. (Not in outward appearances or illusions of perfection. Not in cynicism, apathy or destructiveness.)
You don’t have to have everything you want. Practice saying “no thank you” to dessert or passing on the purchase you’re considering. Benefits are plentiful: Build self-discipline (which is like a muscle) and you learn you’re really ok and often happier when you don’t indulge a “want.”
Grandpa always said everything boils down to how you treat people.
Always treating people with kindness and respect is the most important lesson he wanted to get across to us.
Most brilliant TED talk I ever saw on living authentically. Step one: decide what you don’t give a f*ck about. Step two: don’t give a f*ck about those things. Always be kind and polite but never be sorry for not giving a $@!#% about stuff you don’t give a $@!#% about.
Being well-read is better (and cheaper) than an advanced degree, especially for broader education. Stay curious and read!! Fiction, non-fiction, biographies ...