Stay humble, always keep God 1st, and be a cheerful giver. Ask God daily for guidance through His Word and Prayer...stay grounded. Money can do crazy things to even the best of people; i've seen it many times firsthand... I could tell you some stories that you can't even fathom.
Best advice is to live simply, enjoy your friends and family, help, volunteer, and give to the people and causes God puts in front of you, and again God first. ;-)