Everybody knows how difficult it is to take a first step, no matter what kind of task you have to do. The same is true about writing an essay. Trying to write a draft even without knowing how and what you have to write can help you practice writing a little bit, but on the other hand it is a complete waste of time in most cases. So, every kind of task needs careful planning in order to know the sequence of all actions you have to take while writing your essay.
Well, the first and perhaps the most important step you have to take is choosing a topic of your essay. You can pick one randomly, without even thinking whether it meets your essay requirements or whether you are interested in it and can find enough information. Choosing an inappropriate topic may cause further problems, and it would be just too late to change another one. So, consider all the possible problems you may encounter while writing an essay on a particular topic. By the way, it is better to choose an interesting topic, even if it is complicated, then to knock yourself out writing an easy, but rather boring essay which will not appeal neither to you, nor your teachers. Keep in mind that a bad beginning makes a bad ending.