Listen to what your folks say to you before summarily dismissing it. They have been around for a long time and probably have some very valid points. I wish I had listened to some of the things my folks told me...but I was young and KNEW EVERYTHING!! Some things are best learned the hard way, I suppose!
If you can make a valid enough argument against their suggestions, then OK, but don't be hard headed. Remembeer, they likely want the best for you...most parents do.....