Realist, I would just make two short points (to add to the other replies, some helpful, some appalling). Since you managed to accumulate $2.93m (over 30 years, at least at one point), you're probably a pretty smart fella and I'm risking here stating the obvious.
First, you still have a million dollars. Even if that is only your cash assets, my guess is that easily puts you in the top 5% (more or less -- used to know these stats cold) of people over 65 (you did say you were only a few years from 70). Over 50% of seniors only have Social Security (average = $800/month) -- and only a small percent of seniors have significant assets (but they have all the money. lol). What you may need is a financial planner -- both to organize your investments to generate a stable income, and to protect your assets from financial risks that are health related. Hint: If you think you or a spouse may need long-term nursing home care in the future, keep enough unprotected assets available to pay out-of-pocket the freight for the first year -- you'll get in any of the best facilities -- then a public program will pick up the costs later.
Second, having said that, trading is a learned skill. No reason why you can't learn it at 65 as well as 25. A great retirement "job." Probably wouldn't advise trying to earn the lost $2 million right away :) -- but no reason with a few high probability set-ups you can't pull down $500-1000 per day (that's $100-200K per year) on just 5% of your nut.
Good luck.
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