Help?

So um, I'm 18, just turned last January. And I started talking to a guy very shortly this evening. He was cool, found out he did voice work and such. We were being horny on main together and he asked if we could call, it was very polite and I was hesitant but I told myself I needed to just do it.

So we started dirty talking and then he asked me if I wanted to see something, and he asked for my consent but I still sounded unsure. He turned on his camera and showed me his dick. I quickly shot it down and told him I was uncomfortable, he understood and apologized profusely for moving too quickly. My friends say I should block him and move on, and I agree.

I'm just not sure how to process it. I didn't really expect him to just... show me his dick. I'm a little scared. Any advice?