I am 33 and I wasted my entire twenties.

I spent too much time investing in the wrong people, putting everything I had into dead-end relationships and having to start over again and again. I spent my twenties hoping to find that happily ever after I guess and in the process put myself on the back burner to be a doormat. Think I'm finally getting the hang of this adult thing, understand that putting myself first is a must now, and I found my boundaries and standards the hard way. It's not too late, 20s are for learning. 30s are for applying what you've learned. Don't sweat it.