Dear student here I provide few steps like
Start with an important fact about yourself. Talk about your most recent role, a past role, and why you're excited for this opportunity.

Put a couple big achievements in your tell us about yourself answer. ...

Review tell me about yourself sample answers. ...

Introduce yourself by referencing the job's needs.
All the best...
Thank you....

Hello dear,

Try to relax and sip some water before going inside the interview room,
Take a deep breath while walking inside which will give some relaxing effect to your brain ,
Do eye contact while talking which shows the impact that you are confident,
Need not to fear , because always remember that the person sitting in front of you is also a human like you, and take him/ her as your  inspiration when they speak with you ,
There are Soo many people who have failed to reach till interview level , and
Be happy that you reached till interview level that means you have something which other people doesn't have ,

We humans are confident when we know about something perfectly ,
Before going for the interview of a particular company, try to communicate with the people who are already working there , when they share their experience with you , it will give you some confidence,
Just relax and and smile and try to give your  best ,

All the best for your interview!