You can only write on a particular topic when you have ample information about it. Try to make sense of what it would sound like in English and arrange the words in proper sentence structure order.
When researching a particular topic, do what journalists do. Each item on your list of the major points of your essay topic become the elements of your essay outline.
If you aren’t confident about your grammar, then make use of proofreading tools such as Grammarly and Ginger.
Even native English-speaking students and professionals use such software to double check their work and fix mistakes they miss while re-reading.
Write those points down in complete sentences and in order.
These become your “topic sentences” upon which you will then expand with additional information, ideas, and perspectives.
For example, if the topic is smoking, then you can incorporate the point of view of smoker and non-smoker in the essay.
It will help you elaborate the content by providing multiple perspectives.
You need to put everything you have learned from reading into practice. To get the hang of writing in general, start a personal blog or a journal and simply record the events of your day. A good essay is one that explores the different dimensions of a topic. An essay topic that interests you will be much easier to research and write.
Then share your writing with a small group of native English-speaking students and ask for their feedback. Before you begin writing an actual essay, make a list of the major points and ideas to include in your essay.