Whenever I go home, my parents treat me like a teenager again - how can I stop this from happening?

When you are home, and they are doing something that causes you to feel like a teenager again, identify what that is, share that information with them, and ask them to stop. If they don't stop then leave. If you do that consistently, every time you are with your parents, they will eventally stop that behavior.

Tell your parents that your not the teenager they used to know and that you don't like the way they treat you.

Tell them that you are not a teenager (if you are not). Tell them you want to be treated like an adult and tell them that you are an adult and deserve to be treated and respected like one. It will not change if you do not speak about the issue. So if you can, bring it up with them politely. Being rude about it or yelling will not get your point across and they will most likely ignore your wishes. So be polite and direct about what you want to change.

Tell them nicely that you're an adult now, that you're still their child but you can actually take care of yourself now. And don't forget to actually show them that you are not a teenager anymore by acting like adult.

Show them that you are mature enough. It will be easy to say that, but being mature means being more honest and showing them that you trust them with their decision. The same thing goes for them, if they see you as someone responsible with you and your own decisions, they would trust you the same.

If you are a hugger, give them a hug, and tell them how much you love them. Reminisce about the times when you were a teenager. Say something like, " Can you believe it's been X years since then! ...My how time has flown by and things have changed." And then proceed to tell them about your grown up life and responsibilities like you were talking with a friend.

Although it might annoy you to be treated like a teenager, try to relate to your parents feelings as well: They see their children growing up, moving out and living their own lives. While they are for sure proud of you, it means a different stage of their life as well and they might have some problems to adjust to this new situation too. It might also make them realize that they are getting older, which can be quite scary as well. As for yourself, try to show them in a good way that you have become a mature and responsible person. Tell them about your life in college or at your job and they will realize as well that you are not their little boy/girl anymore. Give them some time and they will not only stop treating you like a teenager, but they will also be incredibly proud of the person that you became thanks to them.

In all honesty... let them! It might seem like they are treating you like a child... but homemade meals, advice, and long conversations can't be beat! Not too many other people are as dedicated to you and your life as your parents are. It's not always easy to admit, but appreciate being a teenager again at home because life is not always easy or fair. There's bills or student loans to pay or groceries to buy. Always, always try to show your appreciation to whoever helped you as you grew up.

Depending how old you are, I went through the same problem with my parents, you have to show them truly that you are an adult now and make that clear. Don't say it in a mean way, just let them know that they can trust you with being responsible .

i believe that there is no best thing to resolve things greater then communication, so maybe you might wanna seat with your parents and ask them why they are doing what they are doing to understand where they come from and give them reasons why you don't want them to do it and see if you could some agreement