I think you mean: I can not remember a lot of words. Well, my advice, is to use them. You have to use the words in context as much as possible. And keep using them. Then they will stick! Good luck!

I think you mean 'remember' a lot of words? Learning vocabulary can be difficult, but it is a lot easier when you see the same words more often. For example, if you watch movies or television in English, you will start to hear the same words more often.