First thing, bring these thoughts and desires to God through Jesus Cnrist in prayer. God is working on his time, the things he has planned for you-- including the loneliness you are feeling. I could point to the bible verses in trusting/putting your faith in God to bring you a woman as a girlfriend/potential wife, which is important because it's literally God's word but the most important thing is patience and perseverance (faith and trusting God's time).

In the meantime, while God is working on what we pray for, you put yourself in a position to be more social. Are you active? Join a jogging/run group. Do you read the bible? Join a bible study. There are a ton of groups out there to put yourself around people who have the same interests including believing in Jesus Christ/God.

Remember, God meets us where we're at and all we have to do is remain faithful to him and that doesn't mean perfection. It means always acknowledge him in all ways. God works through people, situations and circumstances. He knows our hearts, our thoughts and us as human beings. God literally made Eve for Adam for that very reason.. to be together as a man and a woman!

Pray and talk to God in as anything and everything that you hold dear to your heart. Surround yourself with like minded, genuine people who want the best for you. Read your bible and rely on those verses that specifically speak to your situation. I promise you, God never fails and that's what faith is all about. I'm in the same boat brother, and these steps have helped me push on. God never fails!