most people on this planet don't have health insurance,therefore no real need to worry
avoid smoking,fat-food,gmo food and aspartame(coke zero etc) as aspartame is toxic ,and do some sports
I don't live in the US but have heard having a private health insurance in the US is worser than not having one as they simply refuse to pay as soon as you are really ill(=too expensive)you'll have to sue them
it is just like giving your money to a cypress bank.You'll never get the 100% you paid for.
As soon as you have serious health problems try to move to eg germany or france-you'll get health care for free.