You can try bigger books, but don't focus on a dictionary! Try to set a goal for yourself like only looking for one word in each page you read. It's not necessary to find out the meaning of every single word! I startes by reading John Green's books! They are really easy and the stories are very interesting!
About your last question, no. You improve your listening skills by listening. And to reach it, try to listen to songs and tv series, for example. talking with your italki friends by skype can help a lot :)
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May 17, 2017
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The second one is also correct, but I'd use it in a situation where at the moment i'm talking to the person, but I want to say that before that we hadn't talked. And about the "never", always use "i have never been".