is it just speak? how about the Sentence Stress? ( exercise writing ) Just does not work sometimes. I really dont know about the others english students, but for me is hard to know the word's setence stress, I believe that is the most hardest part of the studying the a another language. You are used to the rhythm of the your language. Then how to get over it? I'm in personally use to watch besides tv shows, american daily vlogs and podcast because they aren't speaking to foreign people so they're speaking the regular rhythm. you know? But I know that is not only way to learning, then I make some sound exercises to say almost perfect sounds like "R" or words ending in "th" or "ed" (so Hard! to know what kind sound "ed" it is). I'm joined on the italki yesterday and I'm loving it. So if you want some tips about setence stress and end of words. I'll love. Thank you guys!! and I'm sorry for anyone mistake.