@Cal. Yes loneliness is so very hard. To me, 36 sounds young. Although I acknowledge that you may not feel that way.
It's important to push yourself. Initially you won't want to go and and socialise. It may feel too overwhelming. So it's important to take small steps.
* Compliment someone's hair or dress. That makes others smile.
* Join a short course - a language, a craft, technology. Something that you have thought you might like.
* Volunteer. Join a group amd volunteer your time. An animal shelter, an op shop, helping primary school children with their reading, helping at the local bbq fundraiser.
It's about getting outside and being with other people. Don't expect to find a best friend straight away. Initially just keep up communication. Eventually you will meet people that you'd like to spend more time with. Follow through on this. As they'd probably want to get to know you too.