BOYS ARE SO WEIRD AND GROSS- NEED ADVICE

Hi im 15 f in highschool, and omd the boys are so creepy. first off they harass every girl they see verbally especially if they have a bigg butt or is thick by saying 'GYATT" or "Damnnn!" (has happened to me and my friend and other friends i know) and also a lot of them will literally look at a girls ass and then i'll see them be like "look at her ass damn" to their friend while pointing at the girls butt, ive seen this happen literally today and it was so creepy, i looked at the friend and he was smiling when he saw me notice them say this abt the girl. ive also heard a group of boys when we went to the library as a class during english, be like "smash or pass" and this boy who was asking it kept looking around the class for girls to ask to his friends who to smash/pass, it was creepy, i even heard him say smash or pass to my friend who was sitting next to me, and i looked instantly and they got so red. and also in my theatre class, there was this one boy in our group, and unfortunately i had to do this slow-motion death scene with him which was 2 min long, and u have to make eye contact , and i literally was so SHY, SO EMBARASSED, I COULDNT KEEP EYE CONTACT AT ALL, I KEPT FIDGETING AND IGNORING WHAT HE WAS SAYING AND INSTEAD THOUGHT THE BOY WAS CUTE so i kept l ooking at his face instead of what he was saying, i was feeling so bad for him he kept looking at me like "tf why is this girl so weird" , i keep thinking abt it , i must have made him so nervous/uncomfortable, dude talking to boys makes me so scared and anxioous, its not the same as with girls... i desperately need advice, sadly ive gone through bad experiences with boys hence why i get nervous when talking to them or even making eye contact, thinking in my head that for some reason talking to this boy will make me fall in love with him or smth??! its so stupid i know, but please i need advice, i have theatre class tmr again, and i dont want to act like such a nervous train wreck when being infront of boys like him, all my other girl-friends can talk to boys calmly and have a normal conversation whilst i keep dreaming of us being together if i talk to one boy bc its the opposite gender yk. im so dumb i know but please give me advice..<3