your best option is to get a private teacher, and if you are a teacher, ask your students to help you.

Do not be shy to speak the words and phrases that you have already picked up. You will have your good days and the regular days known as BCD . learning phrases from songs always helps me. the other thing to remember they have words that mean the same thing but one is written and the other being oral . and just like English they have words that do mean the same thing  Confused yet ? ... I know I am . However the benefits of learning far out weigh the frustration . And just remember that as a foreigner it does not matter how well you pronounce or say something ,there will always  be some Pratt that will say they do not understand good luck to you