I can’t stand my parents nagging me about everything. What do I do?

Communicate! Talk to them about what’s bugging you. Explain to them your need for independence. Listen to what they are concerned about and have a down and dirty talk to hash it all out! It may take more than one try, but as long as you listen as well as talk and do so in a caring, respectful manner, you’ll be surprised at how they can come around.