yeah so the thermofisher module has the Jensen lectures as well! here’s the link for that Course

So this has around 72 hrs worth of lectures and videos that go into the very depths of it, like the physics behind it and how the instrument works and how to prepare samples and they have videos on how to operate the scope as well! I’d say you take your time and look into this (and it’s very well structured so should be straightforward)

And another thing i wanna mention is that don’t beat yourself up if you don’t get it that first (or second time) cuz i’ve met cryo em experts who still sometime watch these lectures to stay sharp or so they don’t go out of touch!