When we’re teenagers, we often think we know everything. Then, as we get older and have to start adulting, we can realize that we don’t have it all figured out. By our 40s, we’ve learned a thing or two that it would’ve been nice to know when we were younger. 

On Twitter, multiple people jumped at the chance to answer the following question: “List 3 things you believe strongly in your 40’s you didn’t quite understand in your 30’s?”

There were many nuggets of wisdom from people 40+ that those of us who are in our 20s or 30s should take to heart. Here are our favorite pieces of advice.

Which piece of advice struck you the most? What have you learned that you wish you could tell someone younger?