It's hard to die

A man who was almost in the last and makes a pact with the devil. Then the devil tells him that he will fulfill a wish in exchange for his soul and he says he wants eternal life the devil says ok.
But do not believe that you desire I managed to evade the moment given had to die the man l touched deliver his soul and was soulless but still living so it became a zombie who was unhappy for eternity because many times he wanted to take his own life and could never end only on a mountain.

But in the part where he is still alive he accumulated wealth but until he felt that none of that made him happy.