Every Piece of Advice I Was Given Before Turning 30 — Graded

I turned 30 recently, which apparently comes with a built-in urge to audit everything anyone ever told me. So I did — I went back through every piece of advice I can actually remember receiving before this birthday, from parents, teachers, strangers, and books, and graded each one on how it actually held up against reality.

Some of it earned an A+ instantly. Some of it aged so badly I’m mildly upset about how long I followed it.

Advice From Parents

“Always have savings you don’t touch, even if it’s small.” Grade: A+ This is the single piece of advice that’s paid off the most literally. It felt unnecessary in my twenties when the amount was tiny. It felt like the smartest thing anyone ever told me the first time an emergency actually happened and I didn’t have to panic.

“You can be friends with anyone if you’re just nice enough.” Grade: C- Sweet in theory, not true in practice. Some people don’t want to be friends regardless of how nice you are, and spending years trying to win people over who were never going to reciprocate cost me more than it taught me.

“Don’t go to bed angry.” Grade: B- Good in spirit, bad as a rigid rule. Sometimes going to bed angry and revisiting a conversation with a clear head the next morning produces a better outcome than forcing a resolution at 1 a.m. out of obligation to a saying.

“It’ll all work out.” Grade: B Mostly true, technically unhelpful. Things did tend to work out, but this phrase never once told me how, which is usually the part that actually matters when you’re panicking.

“Choose a partner who makes you laugh.” Grade: A Simple, and somehow still underrated. A shocking number of other qualities become negotiable when this one is solidly in place.

Advice From Teachers

“You’ll never have a calculator in your pocket in real life.” Grade: F I have a calculator in my pocket at all times. This remains the most confidently wrong prediction anyone in an authority position has ever given me.

“Your GPA will define your future.” Grade: D Technically relevant for a narrow window of time, then almost entirely irrelevant afterward. Nobody has asked about my GPA in nearly a decade.

“Learn to write clearly, it’ll matter more than you think.” Grade: A+ This one undersold itself. Clear writing has mattered in every single job I’ve had, regardless of field, more than almost any other single skill.

“Public speaking gets easier with practice.” Grade: A- True, but “easier” doing a lot of quiet work in that sentence. It gets more manageable, not actually easy, and nobody warned me about that distinction.

“Don’t cheat, you’re only cheating yourself.” Grade: B Morally correct, practically a little naive. Plenty of people who ignored this did fine. The real cost wasn’t karmic, it was just never actually learning the material, which caught up with me in different ways than promised.

Advice From Strangers

A cab driver who told me “worry about your health before you worry about your career, health doesn’t wait for you to be ready.” Grade: A+ A one-time stranger, twelve years ago, and this line has outlasted advice from people I’ve known my entire life.

A woman at a bus stop who told me “the people who seem the most confident are usually just better at hiding the doubt, not free of it.” Grade: A This reframed an enormous amount of my twenties. I spent so much time assuming everyone else had some certainty I was missing.

A bartender who told me “never trust someone who’s rude to the staff and nice to you.” Grade: A+ Simple, has never once failed as a filter.

An older man on a plane who told me “buy nice shoes and a nice mattress, you’re either standing or lying down for the rest of your life.” Grade: B+ Genuinely useful, slightly overstated. Also applies to chairs, which he did not mention and probably should have.

A stranger at a party who told me “you’ll know you’re an adult when you start finding home improvement interesting.” Grade: A- Accurate, and deeply unsettling to have confirmed years later.

Advice From Books

“Do what you love and you’ll never work a day in your life.” Grade: D- This is the most repeated, least honest piece of advice on this entire list. Turning things I loved into obligations sometimes made me love them less, not more, and nobody warns you about that trade before you make it.

“Fake it till you make it.” Grade: B- Works in short bursts, for specific situations like presentations or interviews. Fails badly as a long-term life strategy, where it just becomes a slow-motion form of lying to yourself.

“The days are long but the years are short.” Grade: A+ Painfully, almost annoyingly accurate. I didn’t understand this sentence until I was old enough to feel it happening in real time.

“You are the average of the five people you spend the most time with.” Grade: B+ Directionally true, oversimplified as stated. It’s less about averaging and more about which specific behaviors quietly become normal to you because the people around you treat them as normal.

“Comparison is the thief of joy.” Grade: A- True, and also one of those pieces of advice you have to actually get hurt by comparison a few times before you’re capable of believing it.

Final Grades by Source

Averaging everything out, strangers ended up with the highest overall grade point average of any category, which was not something I expected going into this. Parents came in second, mostly buoyed by a small number of extremely high scores that outweighed a few well-meaning misses. Books came in third, dragged down heavily by a handful of extremely popular, extremely repeated pieces of advice that sound great on a poster and hold up badly under actual use. Teachers came in last, mostly because so much of what I was told in a classroom setting was optimized for a version of the future that never fully arrived.

If there’s a single takeaway from grading a decade and a half of advice, it’s that the best guidance rarely came from the people with the most authority to give it. It came from people with nothing to gain from saying it — a cab driver, a stranger at a bus stop — who had no institutional reason to hand me a tidy, quotable line, and said something true instead, almost by accident, because they weren’t trying to sound wise. They just were, for a few seconds, and it stuck.