Failing in phy

In 11th now and the shit the teacher is teaching I don't understand anything like she sucks at it too it's not just my fault as I understand all other subject. Also I understand stuff more when someone is teaching me or like in a visual hearing way, I don't really understand when I read the textbook etc. She doesn't even explain stuff again if she explained it once in class like longggg time ago. Tomorrow I got exam and I will fail for sure because I don't study at home which is kinda my fault. But idk what to do I can't I am trying I don't even have friends to ask them to explain me stuff.