How to get only the checked songs on iTunes to stay on your iPhone?

After I updated to the iOS7 on my iPhone, all the songs that I don't want are showing up on my iPhone. On iTunes, I checked the box that says only add check marked songs, but that isn't working. Its like whatever I had before the update is what I still have and I can't change it at all. Any suggestions?

You should have used manual management of music and video in iTunes.