Please don't give up. You don't have to decide for all your tomorrows--that can be too overwhelming. decide for just today that it's not today. "There may come a day when I decide to leave it all behind, but it isn't today."
You've helped so many people here just by being the kind,generous soul you are. Many many people would miss you and I know that's not much balanced against the pain you're feeling, but it's all we've got. only you can decide if it's worth it.
Sending you thoughts of healing, peace and comfort