Almost everything documented about this game assumes I know more than I actually do and assumes i've been playing for months/years. They explain one device, but then skip explaining everything else even though its crucial.
Dude, RedPower2 is super well documented. Each piece of redpower logic is documented pretty well over at the technic wiki, including what side does what. For example,
state cells.
I've watched a dozen of videos on certain things and still couldn't figure them out, ultimately giving up on them. It's insanely hard for new players to get into this game because everyone assume you know stuff that are consider "the basics". One question leads to 3 more which leads to 3 more. =/
Rather than crying about how you don't get it, spend your time on this forum asking specific questions. I gave you a build that does pretty much exactly what you want to do (keep a reserve of power via a lava engine), and I'd be happy to show you how to build it if you asked.
I have to play by myself because every single friend I recommend the game to quits because it's too complex and "they shouldn't have to spend hundreds of hours learning how stuff works before they can do anything cool". I'm almost positive 99% of people learn the majority of their knowledge from other people in the game. Being taught something in the game is so much easier than watching a video that you only halfway understand.
Here's the trick with bringing people into modded minecraft, because I've made this mistake too. Describe some of the stuff you know you can do at a high level. "Oh yeah, we could make a mine or a secret base, or breed bees and set up a farm, or make an inter-dimensional mining ship." Set a goal and then only expose exactly what you need for that goal. Don't be afraid to stick to vanilla. Never dare utter the word "efficiency".
Vanilla minecraft is super fun, and just getting a few things beyond it is MORE than enough for the start. I've played easily over 300 hours of vanilla minecraft with friends.
After ~100 hours or so, I still feel like I am a complete noob and don't understand the majority of the things in the game.
So people tell me I know a bunch about modded minecraft. The people I play with routinely answer really tricky questions with fabulously clever solutions on this forum. We
still all teach each other stuff we don't know and find surprising new tricks. Part of the fun of Modded Minecraft is that you
can be a noob at it for months and months. If you get bored of what you're doing, there is a totally new thing you can try doing! But there is no absolute score; you can be cooking your ores in furnaces and living in a dirt hut and if that is awesome to you, then congratulations: You Win Minecraft.
Stop for a moment and tell yourself, "The score is how much fun I'm having." The goal is not "amass the most metals most efficiently" or "have the biggest thaumcraft node." Those are just bits on a hard drive. What's important is that you enjoyed building something. Or maybe blowing something up.