At times I feel like you and no you are not too old. In my meetup group I have befriended someone about your age and she is full of life. Regarding your first sentence I agree with you, but today one of my friend reminded me that things happen for a reason.
In my personal case it's that I knew I was depressed but expected STBXH to bring me happiness and it'll go away. It didn't work as depression only help me to destroy my marriage. Now I can see why he doesn't love me and cheated on me. Wasn't the best person to live with!
I'm one year since BD, still hurts and don't know what the hell I'm doing with DB, but one thing I can tell you finding this website has been my life saviour.
It might not save my marriage but I'm definitively in a better place than last year.
