How to get my parents approval?

My parents always say how they are disappointed with me. Or how they don't approve of me. They don't congradulate me on anything and it seems like their goal is to make me feel bad. They only look at the past, even though I've changed. They don't care. So anything little happens, I'm the one to blame. I've tried a lot of different things to earn their approval, some of them were not safe at all but I didn't care. I just want to know how would someone get approval of their parents? Thanks.

well, you can try to do somthing really bad and see if they even notice you and if they don't you need to tell them how you feel

Growing up is very difficult—for both you and your parents. They remember a little bundle of joy that they held and nurtured as a baby and now they see a budding adult. These days, children face things and know about things that their parents would never have imagined at the same age. The teenagers of today look older, act older and want to be older than their counterparts did just 20 years ago. It is the desire of all parents for their children grow up in the way that they should go (loving, caring, respectful, and being of good solid character).
It is necessary that you truly understand that your parents have your best interests at heart. They will withhold privileges, set limits, and raise you to the best of their ability (neither they nor you are perfect), but be Thankful - They Care - many, many, many don't.
Ask them for guidance and seek to understand what truly motivates their decisions.
One of the best ways to prove your maturity and prove that you are ready for more trust is to be respectful of your parent’s wishes and accept their guidance. Learn how to communicate love, honor, and respect to each other - TALK...I wish you the best !!