Afraid

you're not weird. everyone is different and we all have different fears. [the thought of calling people i barely know makes me anxious] i'm sure you're not the only person in the world that's experienced what you are experiencing.

i don't know how old you are, but if it applies, and if you can, talk to your parents about it and see if they can find you a therapist. i know talking to parents about sex is weird and uncomfortable, but if you have a stable relationship with them, then they should be understanding and willing to help you. also, a therapist may help get to the root of your anxiety.
if you don't have parents to talk to, then find someone close to you like and uncle or aunt, etc. and if you're in school, i'm sure you can go to your counselor. that's what they are there for.
lastly, i suggest that you explore your own body. sex and arousal are a natural part of life and if you know and understand your body better, maybe it will help with your anxiety.

i hope that helps!