I understand. I watch a lot of LPs of people playing modded Minecraft so that's often how I know what many mods actually do. And even then I still watch a few tutorials that go more in-depth--you have to be a special kind of person to sit through hours of mod tutorials, especially the really tech-y ones. I love the tech mods but even my eyes cross when a tutorial drags on about how much energy is transferred in such-and-such cable compared to this other cable and stuff like that. LOL.
The first modpack I ever did was a pretty lightweight one compared to what I do now--it was the Life in the Woods pack for 1.6. and it was a pack mostly for farming, building and exploring. And truth is, this big "kitchen sink" modpacks are fun, but there are often mods I never touch because I don't get around to them or I don't know how to use them for my projects. Sometimes I just have to focus on a modpack, explore it and see what I can do with it. Like with Immersive Engineering--I've probably played 4 other packs with it, but never got around to the majority of the mod. So in this world, that's one of my projects--built everything in IE and see what I can do with it.