When I was very young, like 6-8 years old. My mother would send my sister and I to the nearest church to our house. And it was a Jehovah's Witness Church. They don't believe that dying, means we go to heaven. They believe that dying is like sleeping until we are called to Paradise (at least that's how I remember it).
So, growing up in a domestically abused household, I thought dying is the best way out. I have tried killing myself when I was like 9 or so but I couldn't get past the pain (the worst would've been cutting my wrist and letting it bleed). But when I was sure I was gonna die if I didn't do anything about it, even if death meant no more pain, the people I leave behind, what of them? I wouldn't be there to see their happiest moments, I wouldn't be there to experience the kind of joy I don't know I'll ever experience again. That was before I met Jesus.
Now that I've become a Christian, I have MORE reasons to stay alive as long as possible. My eternity is secured. I AM going to heaven when I die. But what of the rest of the world? My atheist EX! My friends! My other relatives. What of them?! They may have never experienced real joy on earth, but after death, they won't ever have a chance.