It looks daunting at first only because of inexperience. I know I was nervous as heck when I first did research on it and I've done a lot into it. I just completed my rig now and I started it around the beginning of June! Only because I was constantly yanking things out, putting them back in, redoing the wiring, etc. I also recently decided to install 2 green LED light rods into the case. This is also my first build. But now I'm very happy with it and will be shooting pics of it to display in the gallery.
Just remember to take your time to look things over (components, manuals, etc) and be familiar with them. I know I had all the manuals within reach when assembling my build as I know I will forget something. As previously stated by others be
patient and
don't rush things. It helps to mentally plan your wiring also as it can get messy quick if not thought out. Everything should be easy to plug in and require little to no force. You should never need excessive force to plug things in.
I also did the number one thing (I think) I shouldn't have done. I assembled everything on a carpeted floor...
But then I made sure I was constantly grounding myself before/while touching or handling any of the components.