I understand five languages, but I cannot write or speak any of them.

Do you know what is like knowing 5 languages but can't barely speak and write  any of this languages. Well I know. I understand Turkish, German, English, Russian and Kyrgyz (my native language). But I can't use any of them. I can watch videos, TV shows but i can't speak and write and I hate it. I appreciate that I learn more about different cultures, peoples but how I can use it? Why I am like this. I'm too lazy and this is why I don't want to learn grammar for improve my writing. I am too shy to talk with people. What can I do?