If Smeagol had not died...?

[Bêthberry]

Wasn't it the Ring that kept Gollem alive for these many long centuries? He is something over 500, almost 600, years old when he dies, a span far exceeding that of most Hobbits.

If so, then with the Ring destroyed, would he not then succumb to his very old, unnatural age, facing the same fate as the Nazgul? And even if he survived, it is quite possible he would face the tremendous psychological trauma of suddenly knowing that his Presciousss had been destroyed. He's already been driven into a kind of split personality. The loss might bring on a final breakdown, complete and utter insanity that not even the hands of the King could heal--or Elrond, who was unable to help his wife recover from her trauma at the hands of orcs.

I really don't see Gollem as a gardener, although I know that is one of the calming activities made available to those with alzheimer's. Perhaps fishing would be more in line with his interests?