Hi Trying to be Strong and welcome
I must say 65 isn't all that bad.

Medicare contains 4 basic parts, Part A, Part B, Part C, and Part D...Part D is a plan that covers prescription drugs and you usually have quite a choice of Part D providers. A key to having coverage for MS drugs is to choose a Part D (or other plan) that covers the DMD you are taking...and, check to see what the co-pay may be. I think Part C plans also cover some medications, but I've stayed away from Part C also sometimes referred to as Medicare Advantage Plans.
A good site to start checking this out is
Medicare.gov
All the best to you and stay strong...
sharon