Then discuss with the thesis instructor to see if this thesis can be completed according to the existing level and resources.
The third part is to find as much information as possible. The more information, the easier it is to write. It is best to find relevant books and papers, which are more academic. Some articles on the Internet cannot be used as reference materials. If you have to watch it online, you must go to an authoritative website, so that the data you find can be convincing.
Finally, it's time to start writing, mark the quoted places, seek truth from facts, and don't copy other people's research results!