RE: plane building
your getting some great advice, only thing I would add is to read the instructions all the way though at least once. Then if you feel you got a handle on it you could start one step at a time, try and look a couple of steps ahead and understand them before doing a step. That might save some mastakes.
AND if you make a mistake (everyone does) don't worry anything can be fixed, just get back online and ask !!!!!!!!!
good luck.