It is not always easy to learn something new. People make many mistakes, but making mistakes is a normal part of learning. Even if people are good at something, they will still learn something new. Life is about learning and when people stop learning, they start to die.
You are all gifted with the ability to communicate in English. A language is a tool. A tool lets you do things. You may think that your English is not that good, but you already have a tool that will enable you to do many things.
Good luck, keep trying, and learn at your own pace.