Esther, to practice English you need to go outside in the sunshine (or rain, since you are in England) and try to talk to people.
Benny Lewis, has a series of books called "fluent in 3 months" where he basically says - practice some key words or phrases, then go out and practice your language skills with real people.
Essayez de poser des petites questions aux gens pour commencer une conversation.
"what time is it?", "where is a good cafe near here?"
Next time you are shopping, ask a shop assistant about the time. Or ask the staff at a hotel about their favorite cafe, and how to get to it. You will see and experience if the person you asked understands you, and if you understand their answer...
pratique tout le temps.