what should I do when my parents and I have different ideas?

what should I do when my parents and I have different ideas?
My parents always tell me what to do . They think I'm still that little boy. But now i'm older. I have my own ideas. Sometimes they don't understand me .They think I should do what they told me to do .If we have different ideas, I think I should listen to their ideas first ,then tell them what I think. I won't quarrel with them because they are my parents .They love me . Whatever they do , they think it good for me.So we should sit down and discuss. I think they will help me.