For me, the best way to learn English well that we often read everythings in English. This way of learning English will help you to improve  more vocabulary to yourself. I can remember vocabulary longer and know how to use the words correctly. The second, I always practice grammar. I do different exercises about grammar from different grammar books. I can take the most basic grammar points, then write down a small memo pad or can stick it on the study space. Moreover, I take every opportunity to speak and write English. First, I picked up conversations on the internet and started practicing. I followed the speaker's words without stopping, recording my own voice to compare with the speaker's voice. Thanks to that, I will know my incorrect pronunciation score, there by practicing my pronunciation more correctly. If my friend and I have free time together, we will communicate with each other. I also take advantage of the presentations to practice speaking English to I improve my English skills. My last tip is to be self-confident.  Don't be afraid to do wrong. From the mistakes we do,  you can learn to change every day. If you have problems with English grammar you should ask the teacher. If there is no reasonable learning method, you  should consult with teachers or friends to improve. These tips have helped me to become a successful English learner.