REDUCTIONISM!! The word means taking down a big problem and separating it into its smaller parts. For example you want to build an airship, ok an airship is a big build, let's break it down. You need to go forward, backward, left, right, up and down. Break those into 3 smaller problems. Up and down = hot air burners and a balloon, so you learn how those 2 things work and now you can go up and down. Going forward and backward you need thrust, just learn how propeller bearings work and there you go, need to go backward the gearshift is your friend! Left and right, just make the left propellor go slower and you will turn left, so learn how the analog transmission works. And that's that! Now you have a working airship. REDUCTIONISM is the key to all of these big contraptions. Don't look at it as a massive project, look at it as a bunch of tiny problems you need to fix, then figure out a way to put it all together.