New old guy here"getting into shape for retirement"

Hi All I've been with MFP for about a year or so. I have decided to get serious about my weight. I am a 57 year old, very active, male that weighed up to 185lb not bad but.... I have found out that I should be weighing 140 to 165 so he I go. I have made a pact with myself to weigh 160lb by September. So far I'm weighting in at 173.5 My weigh loss slogan is : "getting into shape for retirement" wish me luck!