As far as Social Security goes, you take a substantial hit if you start collecting at 62 compared to 65. Something to remember is that if you don't start collecting at 65/66, your entitlement amount goes up 8% a year for every year you delay until age 70. You kind of have to play the odds if longevity runs in your family. Interestingly, 70 is the last legally significant birthday you have to keep track of (16 for driving, 18 to vote, 21 to drink, 65/66 for SS & Medicare, 70 for maximum SS and mandatory time to start tapping IRA accounts for required minimum distributions if you haven't already.) so mark your calendar, take your chances, and plan your retirement Z budget accordingly.
Dennis