I'm a newbie to the Marriott Rewards Program. So in two more nights (next week), I will qualify to become a Platinum member. Yay! Do I continue to stay platinum if I keep active? I stay at a Marriott hotel almost every week. Or does the process of becoming silver, gold, platinum start all over on January 1? I can't find any information on the Rewards site about how one stays gold or platinum. Thanks!