How do I control my fear when climbing?

I have a fear of sports climbing. The moment i get a little bit too far from the ground, each clip becomes more and more nerve racking and stressful.

The more I do it though, the less stressful it becomes. After just a few sessions I get used to it and the fear goes away. But, the condition is that I do this often. If I sport climb once a month, the fear doesn't go away. If I do it at least once or twice a week, the fear goes away pretty quickly.

So what helps me control my fear is actually doing it more often.