Why do you have to keep it to yourself??? It is dangerous to keep it to yourself. I can understand not wanting to burden your family. I have decided not to burden mine with my everyday mental illness problems. It is to hard on them. I do have a support network outside of my family though that I can tell. Part of it is professionals. I think the safest place to tell is to a professional. You don't have to tell them you have a serious plan if you do. Or maybe you should. If it is very serious you may need a hospital even though you don't want to go. If things continue to get worse you will not be able to hold the job anyway.