Our children are young adults. It's been my second time of seeing those ambitious parents dreams smashed. (My class and theirs)
You can have amazing dc while they are young. But remember when you were young adults? Who could tell you anything??
Teach your dc how to make good choices. Teach them that you're a safe place to go to when they are in need of help/advice. (Don't throw fits bc they aren't perfect/made a massive screwup. They will. YOU did.)
Give them time to do nothing bc they need that, as children/teens. When you're bored, sometimes you realize what you really enjoy/want. Let their brain wander.
Remember life is long and expecting people whose brains aren't mature until age 25 to know what they want isn't very smart.
The most perfect, popular dc whose grades and extracurriculars were amazing often burned out and ended up unhappy shortly after school.
Some dc who were "late bloomers" have extraordinarily happy lives.
Find a balance. You can't live their lives for them. Give them time to discover who they are.
Give them firm expectations. ours were: After school: work on job, business or education(nobody gets a free ride). Be good humans. Respect those who are less fortunate. No bullying. Good manners. Be part of our family with love and respect. Be healthy in mind, spirit and body.
Some dc burn out early. I tell mine that life is a marathon, not a sprint. Our rule was one extracurricular/term. Dinner together every night possible. No screens at meals. Holidays together. Make decisions but expect to be responsible for results (we're not going to judge. But we may tease them gently and we will help if we can)
Life is difficult. Let them know you support them as they find their feet. All those lessons? Not very important when they are grown up. Spending time with your dc, enjoying their company, building relationships are far more important than any classes mine ever took. (Outside of lifeguarding)