Does anyone feel old and useless with age?

Hi, I'm almost 64.. I'm feeling old and useless. My strength isn't good anymore. Like it used to be mainly side effects of meds. My health is poor with cvsd. Osteoporosis, poor circulation, hearing , eyesight, you name it's going. I always took care of myself. Now I've gotten older and everything's wrong, my grandkids don't a want me around and they are little still. No friends to talk with or do things with. Why is it we spend our lifetime taking care of family. Loving friends to end up , old and tired. Useless.