Form a study group, but a small one — three or four people max. Explaining something to a classmate is the best way to find out whether you actually understand it. Just make sure it stays a study group and doesn't turn into a hangout.

I graduated college 5 years ago and wish I'd known this earlier: the specific knowledge you learn matters less than learning HOW to learn. Develop good study habits and critical thinking skills and you can adapt to any subject or career.

The standard advice on this is actually pretty good. But what nobody tells you is that consistency matters more than intensity. Studying 30 minutes every day beats cramming for 6 hours once a week. Build it into your routine.

Strunk and White's 'The Elements of Style' is a tiny book that will make you a better writer almost overnight. Every student should own a copy. It's cheap, it's short, and the advice in it never goes out of date.

As a teacher, I see students struggle with this all the time. The most effective approach is different for everyone, but research consistently shows that active practice beats passive reading. Don't just read — do problems, write summaries, teach the material to someone else.

Don't pull all-nighters. The research is clear that sleep is when your brain actually consolidates what you learned. Studying until 3am and then taking a test exhausted is worse than studying less and sleeping. Trust me, I learned this the hard way.