How to stop obsessing and being fearful about being single and being alone. (GKA)

I’ve been divorced for 12 years after being married for 19 (we were together for 24 years). I’ve dated a lot but have not had much luck with meeting “the one”. I loved being married and miss the companionship and feeling of family. I have a 29 year old daughter. I’m 62 and both my parents are deceased, most of my friends and family live in a different state and I want to figure out a way to have a full life and I want a husband/partner/companion and to be honest I want a fulfilling sex life 🙂 How do I manage my mind around something I can’t control?