I am married, both have good credit, credit cards in each our names, my cards are almost maxed, what to do?

I am 63 and don't care about my credit rating anymore. I am concerned my wife keeps hers perfect as she works in a bank. I have about $70,000.00 in unsecured credit card debts. We have a home, car, and a couple loans joint. I don't want to hurt those. We have NEVER been late on anything! What happens if I stop paying my credit cards? I seem to pay every penny I make into these debts and never can get out.