Your recent accomplishment was really something to be proud of, so why are you being so modest about it? If you’re afraid of making other people jealous, forget it. You can’t live your life according to how you may or may not make someone else feel. If you feel like shouting from the rooftops, do it! No one is going to argue with you, given the platinum album evidence. And if someone is green with envy, that’s their problem, not yours. Sing your praises. It’s sweet!