Blowjob

Hope
So at one point, I was slightly drunk, and I gave a blowjob. I accidentally ran my teeth along his dick, because I had the spins super bad. But that experience scarred me too much😂😂 
I want to give head to the boy I've been dating, but I'm honestly so scared. I have no idea what I'm doing, and I feel like it seems easier than it is. HELP! What do I do!? What are so easy, and basic ways to give a blowjob that isn't horrible?