Doing well learning but struggle immensely with vocab

Hello!

I'm a 2nd year programming student. I've done well in all of my classes up until now, and I've been programming self taught since high school, mostly making silly games with pygame & unity.

I think that I understand the basics well enough, but I do not understand hardly anything when I listen to other people speak about programming. Things that people talk about as if they have known them their whole life, and I should too.

I don't know what argument mangling is, or byte management, or what a stack is (Maybe?). I struggle when reading descriptors for code, and I find it hard to read other people's programs as well.

Maybe this isn't normal, and I'm setting myself up for failure.

Please let me know if you have any thoughts!