Tomorrow will be tomorrow. Maybe you'll walk through the day, maybe you'll crawl, maybe you'll dance. But that is tomorrow -- not today -- let it be.
Is it so bad that you have thought about hurting yourself? If so, do you have a plan on how you might do that? Have you tried to hurt yourself? If you can answer yes to any of those questions, you need to get help. NOW. Call any mental health provider and tell him/her that you've thought about, planned or tried to hurt yourself. Then work with that person. NOW. TODAY. Stop reading and do it NOW.
If it hasn't gotten that bad, then you still need to get some support but perhaps not as urgently. You might need to see a therapist to help you make plans on how to get unstuck. You might need to see a doctor to take advantage of medication to help you see some light. You might need to arrange for respite care for your husband. (Look under Center for Independent Living in the phone book -- they help adults remain independent in their homes as long as possible).
You are important. You are supporting so much right now. While you might think that tending to your needs is a sign of weakness or selfishness, it is not. It is like putting on your oxygen mask FIRST before helping a child next to you. You need support to keep yourself and your family together.
I have been in the "Lord take me NOW!" place that you are in. It's so sad, so overwhelming, so depressing. I cry all the time. I just want to lie down on the floor and sleep forever. I want all the responsiblities in the world to just go away. I want something, anything, to arrive and make it better. The LAST thing I want is something else to do.
And seeking support is, in fact, doing just one more thing. But it has to be done -- you know it. That's why you asked us.
Call a level-headed friend to help you if you can't figure out what to do (remember most people LIKE to be asked to help. And wouldn't you do the same for her? Wouldn't you be upset to learn that she was this sad and didn't ask you for help?)
Brainstorm with the friend to make a list of the needs you have: respite workers, medications, mental health therapy, support groups, new place to live, etc. Then pick one and work on it: make a plan, make phone calls or just sit next to your friend while she does it for you.
I promise you, once you start taking steps to get unstuck, you will feel stronger and more able to cope. That's not to say that every day will be an improvment, but it will get better eventually.
Call a friend. Take the first step now. Today is hard.