I am terrified of penetration

I just don't like penetration. It could be fear of pain idk. I don't like anything there, the thought of it sends shivers down my spine. I have only tried it twice with my partner and both times he has failed to enter. It makes me frustrated. He has tried to go in a bit and I get so scared I ask him to stop. I also have low libido, I don't get in the mood as easily as my partner does. Even writing this post and thinking about penetration makes me squirm a little bit. I look at other girls who don't have such an issue. I don't know what I could try to get rid of this fear.

Edit: thanks for all the replies, truly. I was considering deleting this post because of the creeps in my dms but maybe it'll help someone in the future get advice or feel seen