Study vocabulary first. It is the most important part of any language. Study grammar last. It is the least important part. Divide time equally between input (listening and reading), output (speaking and writing), and fluency (practice until perfect). People usually forget to work on fluency.

Hi ^_^ You can improve your English , by focusing on the 4language skills : 1- Listening ( listen to your favorite songs or audio books ) 2-reading ( your favorite books or stories ) 3- speaking ( speak with your friends , record your voice to correct your errors ) 4- writing ( write short paragraphs , or what is on your mind ) plus learning New Vocabulary & Grammar Good Luck ^_^