My older brother committed suicide years ago. I had small children who had never met him. Along with all the other emotional cargo, I was angry that my kids never had the chance to know him. He was an extremely funny, artistic, musical, loving person. Your family and friends lose more than just your physical presence. EVERYONE affects the world in a different way. You may not think you contribute much, but I'm sure a whole lot of lives would be forever changed for the worse.
Please seek help if this is on your mind. I'm sure you have touched many on this forum and in real life.

Call 911 if you don't know what else to do, my friend!