It's honestly not hard, I was nervous when I first made assembled one, but it's really simple if you look at some videos, a manual or something before you do it
Exactly, when in doubt visit a YouTube howto or find an image diagram.
Its a lot of common sense too, the connectors are usually impossible to mix. Just as long as you apply the right force when plugging / removing things, and handle the hardware properly, you'll be fine.
Everyone is still excused for the cringe moment as you turn it on for the first time though.
