How to prep for junior system design interview?

I'm a complete beginner with no prior experience and prepping for an entry-level SWE role. I've studied the foundations and have started to get more into case studies. I've watched Neetcode system des

I'm a complete beginner with no prior experience and prepping for an entry-level SWE role. I've studied the foundations and have started to get more into case studies. I've watched Neetcode system design videos (e.g. Design Twitter) and found his explanations (similar to his LC videos) extremely clear, however they aren't structured in a way that actual interviews should be and are more of an explanation of the answer rather than a walk through. Hellointerview has great pages and walk throughs as well, but I believe some of the content is directed more towards senior dev roles which is complicating my understanding and I'd like to avoid having to go into details I don't need to know. Any advice at all would be appreciated. Thank you!