I have a video conference interview tomorrow for a summer internship. Imposter syndrome is coming on strong and fast.

Any advice would be greatly appreciated!

You're good, uhmm no. You're great! :)
just relax, believe in yourself and they will believe in you too.
be confident but not over confident.
talk smart.
show enthusiasm.

well I hope this helps :) All the best of luck!

You know what you know. You also know a little about what you don't know - there's always a lot of what you don't know. That's ok because you don't have to know it, you just have to know how to find it.
Everyone knows a lot less than they don't know.