Don’t be afraid to make mistakes. Be confident. People can only correct your mistakes when they hear you make them.
Surround yourself in English. Put yourself in an all English speaking environment where you can learn passively. The best way to learn is through speaking.
Practice every day. Make yourself a study plan. Decide how much time a week you are going to spend studying and stick to it. Establish a routine.
Tell your family and friends about your study plan. Get them to push you to study and also don’t let them interrupt you.
Practice the 4 core skills: reading, writing, speaking and listening. They all need to be worked on for you to improve.