I've been going through the same thing. My therapist is trying to help me understand the dynamics of retirement and the adjustment that so much free time takes. I'm trying to learn to fill my hours with stuff but it's hard to fill an entire day. He says I need to relax and learn that it's okay if I'm not a ball of fire anymore. That it's okay to sit back and take it easy. Maybe all your plans just aren't that important any more. My priorities have changed so maybe your has too and that's okay.