Your ability to write essays will dramatically affect your performance at university level. You need to be able to write an essay well. Good essay writing is not a skill you are born with, but it is a skill you can learn.
Generally speaking, when writing a report it is very important that you can write clearly in order to progress.
Report writing is a skill that could serve you very well in your future career. For example, business reports, engineering reports, legal reports.
Writing a report is very different from writing an essay.
To succeed at writing essays you need to know how to analyse the question and plan the structure.