A purposeless life

Most everyone who posts here is much younger than me. I am an aging baby boomer, 63, unemployed,and feeling purposeless in life. Each day I wake up and wonder what to do with another day. Children long since gone, dog died a few months back, and a marriage with a husband who also lives under the cloak of depression.
I had to go shopping today to buy a birthday gift for someone, and just being out and having a reason to be out was like...."I remember what life was like once, when there was a reason each day, when I wished I had more time to "relax" Yeah, not so great when all you have is time to do nothing, and there doesnt seem to be any hope down the road. I am just numb inside. Dont want to die, but see no reason to live like this.