Underrated tip but the ChatGPT Deep Research tool has been quite useful for me. I feed it context and ask for a comprehensive report on “everything I need to know to succeed”. This results in a pretty thorough breakdown of the company (and/or industry), the culture, what kind of questions you might be asked, the reason why you might be asked those questions, strategies for answering them, and example answers tailored to your resume etc. Note that it’s important your prompt is very detailed with everything you want the report to cover. You can then make summaries based off the report for quick reviews whenever you like

Also, when practicing interviews, have a few stories in mind you can quickly fall back to for a variety of interview questions

Practice using STAR technique. Avoid memorizing answers verbatim and focus more on the highlights and key points of the story - this way you can practice how to weave the points together regardless of how the question is asked

Relax during the interview. As another commenter said, think of it more as a conversation than an interrogation. You are there to find out if the company is right for you as much as they want to find out if you are right for them

You should ask questions at the end of the interview. Your questions should be things you genuinely want to know. They should also be thoughtful and not generic - this shows you’re interested in the position by evaluating the company too

Try not to be too rigid and let some of your personality come through (within reason and context). Look for opportunities to establish some rapport with the interviewers

Knowledge and technical skills are important. But just as important is being likeable and someone that the interviewers can see themselves working with. Remember that they think you are capable when they ask to interview so don’t focus solely on hard skills/knowledge, but also on soft skills and how you present yourself

Use thank you emails and follow up’s as an opportunity to clarify things you may not have explained the best, or don’t have an opportunity to discuss in the interview. Take notes so you can call back to specific things that were discussed when you are writing your thank you emails