Relax, talk about yourself, talk about what you've done.
I think doing things like this and from the thousands of Reddit posts about "the dreaded interview problem" only leads people to over think it and have worse anxiety and performance, not better.
The interview to my first job was just listening to my then-boss talk about the company for 30 minutes, the second was stonewalling while my boss grilled me to make sure I know what I said I know.
You're not going to be able to "train" for that just like you can't "train" for getting rejected for dating, you just have to learn social interactions and go do it a couple of times.
----
I did just remember my worst interview experience, where, after being jobless for a number of years (early on, mind. I'm still young) I applied for phone IT support. - the interviewers asked me to:
"describe the best vacation you had"
"I haven't really been on a vacation" (I haven't been working, poor family, etc)
"Ok describe the vacation you would like to have"
"... I literally don't want a vacation.. I am looking to find work." (Jobless.for.years. every day has been a mediocre vacation up until this point.)
"..... Ok just tell us a story about a vacation"
"....... Ok I suppose I'll go to Rome then? And uh... " Draws blanks
You can't be prepared for interviews where the interviewers are shit, nor if they blindside you with questions like that.
You also might lose your ability to detect bullshit if you try.