Medicare Maze....My Mind is blown

So-o--o, KNOWING that things will most definitely change next year (health insurance) WHAT has been
the easiest and BEST method to navigate thru the Medicare medical maze? I presently have KP Senior
Advantage and feel comfortable with that arrangement,BUT I am pretty certain that ATT's 2nd party provider
for retires will NOT offer that program for next year....so-o-o, I'm in the dark as to alternatives,the"
donuthole" and ALL other related "mind melding" medical options....anyone? What worked BEST for you....
IF you have been relatively health and do NOT utilize meds,doctors or clinics that much?