Have you ever asked your friends why they think it would be good for you to go to church? I don't know how they'd answer, of course -- but I suspect they sense there's something about your life that could be helped by what church has to offer.
What is this "something" they think you need? I suspect they sense there's an empty place in your life -- a place that can only be filled by God. You see, God made us; we aren't here by chance. He made us so we could have a relationship with Him, and could experience His presence every day. But when we ignore Him or shut Him out of our lives, we have an empty place in our souls -- an empty place only He can fill.
Perhaps you aren't even aware this empty place exists in your heart, although all your life you've been searching for a way to fill it. But only God can fill it -- and He will as you turn to Him, because He loves you and wants you to know Him. And you can, because He came into the world in the person of Jesus Christ to erase the barrier between us -- a barrier caused by sin.
Jesus said, "I have come that they may have life, and have it to the full" (John 10:10). By a simple prayer of faith tell God you know you need Him, and ask Jesus to come into your life. Then ask Him to guide you to a church where you can grow in your faith.