This Is An Easy One...
I would have the biggest grin on my face! Post all the formalities at the dear old Dr's office, I would tell everyone in my life that matters to me and get that part over with. Painful as that aspect would be, what would it do? Kill me?
Then, I would use whatever is killing me literally to evoke the legend that was Eric. Bring back the man that I was and have Carte Blanche one last time. No one would stop me, nothing could hold me back. They would know how much I loved them, know how much fun you can have if you want it bad enough, know just how to live for the moment, while still eye balling the future. Eric could finally make the impact he always wanted to, for not any reason other than dying!
When you're on the way to meet the next chapter, somehow your words become wise. Your eyes tell more tales. Your experiences read like a road map for those following. People pay attention, love it or hate it.
At some point, I would sit down with my sisters and 3 closest friends and express any wishes post my demise. In a twist of fate, I have done that already...so it would be more like a review of sorts.