Start by figuring out what type of hunt you are interested in. Guided, DIY, solo, truck camp, backpack to a spike camp, etc. What is your budget? Do you have or want to acquire the necessary camping gear? That might limit some of your options.
Obviously, a diy solo backpack hunt is the most difficult and will take the most planning. But any of those options can be done.
Whatever way you want to go,
JUST DO IT!
Start asking specific questions here. Contact people who have done it through PM's or emails. Join PBS. (there is a wealth of knowledge there) Read books, watch videos. Search out websites like Rokslide or Bowsite that have specific elk hunting forums. Use whatever resources you can think of.
Like you said, you're not getting any younger, and elk hunting doesn't get easier with age. Now is your time!