Self conscious when I suck his dick

Okay I am very inexperienced when it comes to blow jobs and I feel like I don’t know what I’m doing when I try. I’m currently seeing someone and I went down on him but I stopped pretty fast because I’m worried I won’t be able to make him cum and it’ll just be awkward.

I feel bad because I know he wants me to and I want to do that for him but I am too insecure.