Welcome, glad you have seen the light.
Making friends is hard, at least for some people, and I am one of those. It takes time and effort and a bit of courage to put yourself out there. If you haven't met any potential friends at school or work, you can try taking a class in something that interests you, or do volunteer work, anything that brings you in contact with others. Take an interest in people you meet, ask them about their lives, hobbies, children, etc.
The more you put yourself out there the more opportunities you will have, it's kind of a numbers game.