never tried but had suicidal thoughts

I wasn't depressed. I wasn't happy either. It's just that I didn't find any purpose of continuing to live because in the end, we all gonna die, right? Everything that we do will be so pointless. So I had this thought, like "Why end it later when we can end it now?"
But I just couldn't do it. I have families and friends. They need me. and lastly I came to a conclusion that it will be selfish for me to end my life. With my capabilities, I can provide help and happiness for someone else, not just my families and friends. There are still things that make me happy and I wish to feel that happiness while I'm still breathing.