S.U.M.O. stands for Shut Up, Move On. It's a phrase to say to ourselves (and sometimes others) when we are acting or thinking in a way that is hindering our ability to succeed. It doesn't necessarily mean 'get over it' or 'pull yourself together' (although there may be occasions when both responses are necessary). 'Shut Up' means stop what you're doing, take time out to reflect, let go of baggage and beliefs that hinder your potential. 'Move On' means tomorrow can be different from today, look...