Focus on the purpose of doing your research and how you reached your conclusions. Prepare well, be confident and you are good to go. Defending dissertation is the ultimate step and a big deal but there is not much to it. Good luck.

I’ll go with Jade Fisher here, but there are a lot of things that you must be prepared for. Remember, it is just not about knowing your research, but the way of presenting it. You need to learn how to impress your chair, for that ill suggest you do some research, about their educational backgrounds and learn a bit about their area of interest. That way, you can maybe hold a conversation with them.

So, expand your knowledge to the other areas and keep yourself updated with yours. And do focus on your presentation skills.

Hey, I went through the following blog. Seems interesting as to how one must defend his thesis in a better way. You should go through it, the tips are good.

The two tricks to help you defend your PhD thesis better