Absent progress in medical science, your odds of achieving that end are very remote. 75% of everyone, including most of those with the best diet and lifestyle choices behind them, are dead by 90 at the present time. The winnowing is precipitous over the next ten years following that: 1% make it to 100. Few of those lack serious health issues that greatly impact their ability to enjoy life.

Unless something changes these odds are improving only very slowly, with less than a year added to life expectancy at 60 every decade. This is an incidental trend, brought about despite the fact that no-one has really tried to seriously address the root causes of aging and age-related disease in the past.

If you really want to live to be old, and do so in good health, then the way to increase the odds is to get out there and make a difference: contribute to research funds, advocate for more longevity science, ways to treat the root causes of aging rather than patching over the late stage consequences. The whole field of medicine as it pertains to aging and age-related frailty and disease must be disrupted and change greatly from where it stands today.