How do I cope with redundancy?

I am 66 this year and have been made redundant along with all my colleagues. I feel as though I will have no reason to get up each day because I have no purpose. I have worked all my life, brought up 3 children and have 8 Grandchildren. Unfortunately, they are not a part of my life as I haven't seen any of them for 5 years. We are, however, constantly in touch. I have a partner who has been glued to the couch for the last 6 years and I don't wish to become 'stuck' in his world. I know you will all say get a hobby, get a life but, I don't want a hobby I want a PURPOSE, I want to feel valued!