How do you tell someone that they saved you from committing suicide?

That's something that needs to be discussed where you won't be interrupted. Perhaps a walk in the park or if that doesn't work for you, maybe go for coffee or somewhere neutral. If the person that saved you doesn't suspect how close to suicide you were then it will come as quite the shock Redbeard is perfectly correct in telling you to go to a quiet place where you won't be interrupted. So glad you are better and feel life is really worth living! Good for you and thank God for the person that helped you.