How learn English words quickly?

Help me!! how quickly learn English: teaching theory or practice?

About myself=) My name's Rita=) I'm 17 years old. I study at school. My interested in music and dance. I'm dancing with 10 years.I dance hip-hop. I like to travel the world=) My dream is USA. I have many friends. I very love them.We like to walk and dance together! I love dogs,but i have a cat....He hasn't name=) I learn English to grade 5, but i know its very bad=((( Help me please!!!!!!!

Hello everybody!!! I want to talk to you in English=)

I want to go to America!!!!!! NY and LA- this is my dream!!!!! Call me somebody there to visit=)))