Is this normal?

So ive been dating my boyfriend for 3 years now. and he doesnt really talk to a lot of girls but when he does i get so jealous that i feel so much pain. Ive cut myself and literally just shut myself in the roon cause i didnt know what else to do w myself. Although theree was one time I was okay with him hainging out w one girl but other than that i get crazy. Like I literally dont know what to do w myeslf. I try my best to not take it out on him because i iused to do that but since our relationship is on a bit of thin ice i stopped that. So i either cut or shut everything out and literally dont know what to do w myself. Also I cant watch any shows with girls that he thinks are cool or bad ass. I get jealous cause I feel like im not like them so i must not be enough. Ive honestly hated shows i used to like because of this.. I dont know what to do

I don't know if it's normal but I was the same. If there was an actress or singer he liked, I instantly hated her. He didn't have many friends that were girls but there was one he recently got back in contact with. He was constantly talking to her online and we ended up breaking up an 11 year relationship over it. We had many other problems but it was the last straw.
I'd say if you love him, try to keep it under control. It's hard but it can be done. You'll only end up pushing him away and you'll both be hurt.