Yeah, I pretty much suck at it, although what do expect when you don't really have an experience.
So for the past few years I've started working on upgrading my PC a little bit by a little bit, but during this time I thought that cheap components were a good thing, especially if what it gave you was something big.
So occasionally I would buy new memory, a new graphics card, processor, motherboard, hard drives and so on. But of course, not understanding PC's too well meant the components I bought weren't necessarily the best. I bought a video card noting it had 512MB of memory and thought that would be awesome. What I bought was a GeForce FX 5500 around the time that the 7000 series were no longer the high performance cards.
I bought cheap brand 1GB memory only to find my computer crashing like mad a few months later and then not being able to turn it on. Only to find the memory was full of errors.
My most recent build was a new motherboard, high quality memory, and better power supply. However, when putting it together, I noticed my processor wasn't going to fit. I bought a new motherboard which would only fit the newer processors, whilst my current processor was an older version. Being the idiot I was, I went out and bought a brand new processor, and put everything together, only to find the computer wouldn't boot even after reinstalling Windows.
I put the old motherboard and processor back in to find everything ok again. Recently I tried it again and found that the computer wouldn't even turn on at all, so I think the motherboard is totally dead and probably was to begin with.
So I think over time I have slowly learnt from my mistakes and probably realised some of the things that requires building a PC. That also means it's pretty expensive and so I'm going to have to wait till I get a bit of money together. It's just frustrating though as I'm struggling to play games on it as it is. The biggest problem being the game just crashing, the screen freezing and the sound looping. So the only way out is to restart. My computer runs pretty hot too despite using a CPU cooler.
So I need to do a new complete build with decent quality components but without the money, it won't be any time soon. I get pretty jealous of people like jediskilz173 who are building these amazing machines and would love to do that myself. But I think I still have more things to learn before I start doing that. I've never completly built a computer from the ground up, just upgraded a few things here and there. Once I have the money though, I can't wait to build a good computer and be able to play games without slow down or crashing!