Even though I have had a lifetime of numerous health challenges, and always been on the frail side, starting at birth till now, had two doctors tell me in my 20's that I had the body health of a 60 year old and I wouldn't live past 40 (I obviously did)...my goal is to live to 93. Longevity is in my genetics.
Almost all relatives on both sides have lived into their mid/late 90's. A few who abused their health with tobacco/wood smoke, alcohol, poor diet etc. died younger.
So I am still going to believe I can make it to my 90's too! (the aunt I was named after lived to 99)