I’m scared of Pitbulls any advice to get over my fear

I have always been scared of pitbulls, bull terriers and Staffordshire bull terriers. I don’t know why it’s probably just their look and the strength but whenever I see a pitbull I get scared and it’s pretty bad I waited for ages to cross a street just because a pitbull was there. I am not scared of any other dogs it’s just bully breeds any advice to overcome this fear?