1.Remember that learning a language is a gradual process - it does not happen overnight.
2.Make learning a habit.Try to learn something every day.It is much better to study (or read,or listen to English news,etc.) 10 minutes each day than to study for 2 hours once a week.
3.Move your mouth!Understanding something doesn't mean the muscles of your mouth can produce the sounds.Practice speaking what you are learning aloud.
4.Be patient with yourself.Remember learning is a process - speaking a language well takes time.It is not a computer that is either on or off!