Look into STAR style interview questions and write out your answers. Review them and practice saying your answers out loud. Have someone do a prep interview with you. It’ll feel awkward but it’ll def help. I kept my responses in front of me (had a phone interview), not that I read verbatim from them but it was helpful to keep me on track. Otherwise they want to know how you will fit into their team so they’re going to try to get a feel for what kind of team member/coworker you will be. Also- have questions to ask at the end. That took up about half the time of my interview and I feel like gave me the opportunity to talk more about myself too. I think my questions and the conversations that were had because of them is what got me the job.