Having spent several years unexpectedly alone after a big breakup in my mid twenties, I'd also highly recommend getting involved in a church, even if it's just to serve others in some practical way organized by the church. Most churches have plenty of need in "care" ministries like bringing meals (and conversation) to people who are homebound, or in the hospital. One cool thing our church does is organize volunteers to help with teaching English as a second language to refugees living in our community.

Do enough of these kinds of things and not only will you connect with those you serve, but also with those serving others out of love. These are good people to be connected to, especially since you'll become more like them over time.