Lol YouTube is full of helpful how-to videos, my friend. Just make sure when working with electricity/electronics, you secure your power. So, unplug your power cord, turn your PSU off if it has a switch, and dive right in
. Make sure you ground yourself. If you don't have a grounding mat or wrist strap, you can just touch a metal part of the case every now and then to discharge any static build up in your body. If you would like to advance your computer knowledge, stick around nvnews, ask questions, post answers, and if you want, buy yourself a CompTIA A+ Essentials book. It's like the Bible of computers. I've had mine since 10th grade and I still reference to it.