how to remember Vocabulary? is there any good method to remember vocab?

please help hi guys, i'm trying to improve my English by watching many hollywood films but how can I understand what they say if i dont know the vocabulary. what should i do? (i asked my friend how can she speaks English very good and studying in Oxford, she says read book and watch a lot. how can i understand what they say if i dont know the vocab?) please help

How to memorize vocabulary by reading books? How to memorize vocabulary by reading books? I read an import book and I dont know how to memorize word by word. Is it ok if I underline word I dont know and translate ? Give me better ways. Please help. I need your advice guys

Correct this please :) I want you to not keep in touch or be friend or whatever the fuck it called with her and people around her. I want you to respact my presence, my heart. But you did it. It seems like you ignore my presence. You forgot you've hurted me last year with those people. Why? I'm gonna be true to you.. All I ask is for the same in return but I feel like that's too much to ask for in some cases. And now youre asking me to break. If you want to leave, leave but please dont you love me.

Tell me What the difference between US English and British English. It is still confusing me. Thankyou:) Correct if i make a mistake. I'd appreciate I love learning language especially English