Is it okay for a person to be so curious about death that they commit suicide because of it?

I’ll start by saying that I have almost intentionally killed myself because of curiosity.

When I was eight years old, the thought came to me: “What happens after we die?” I knew that there was no other way to find out than to die. I thought about it for a while, and since I was little I was impatient.
Seeking my answer, I went into the kitchen, made sure nobody was watching, and took a knife. I stuck it where my heart is and pressed in.
Before I even broke the skin, my thoughts raced to my family. I thought about how devastated they would be if I died, and what my little brother would feel seeing the person closest to him dead on the floor.

I put the knife back and cried at my thoughts.

Nowadays, I’m still curious about death and have almost gone mad because of it. I know I’m not going to commit suicide, though, because I can wait until my time comes.

But what about those who have committed suicide because of curiosity? Do you think it is natural? Or does it make them insane?