Need help want to die while still being able to donate my organs

I’ve decided life really isn’t worth living, and want to die. I want to commit suicide while still being able to use my organs for donation, so I can at least save a few lives in the process. The problem is if I die and no one finds me right away then my organs will be no good. Also I read death by cardiac arrest as opposed to brain death will make it so my organs will be unable to be used. I figure since I’m going this route if I can do some good and save a few people in the process it would be the superior method to go as opposed to just ending it. I mean why waste perfectly good organs when I read you can save up to 8 lives from organ donation. I’ve lived a pointless existence and have served no useful purpose in life, but at least in death I can help save a few lives. This isn’t some cheap attempt if there is a god and what people say is true regarding him not forgiving you to gain any kind of absolution, I actually do enjoy helping people, and you never know what if one of those 8 does great things in the future finds a cure for cancer ect, at least it saves 8 families from seeing a family member die. I guess do you have any advice on how I can pull this off as far as giving notification right after the deed is done, or would someone mind volunteering to be the messenger, you will play no part in the actual deed for your own protection. I plan to use the exit bag method since it causes death by brain death and it seems the most peaceful way to go out, while still making it so my organs can be used for donation. An odd request I know, I’ve just been scratching my head trying to figure out how to accomplish this. I mean if I die and no one finds me for hours which is the most likely scenario then my organs are no good, and there goes my chance at doing some good with my sad life. Anyway any help or advice would be much appreciated.