make sure you're not statically charged when you do stuff..
Also the 98 in his user name could be referencing to the year he was born (1998) which would line up with him being 15.
First thing to do , is install the PSU in the case, then plug the PSU in and make sure the power is on to it. The metal case of the PSU will then be grounded, and this in turn will ground the case, so every time you touch the case you'll be grounded.
I've read mixed things about this. So is your advice it to have the PSU plugged in while working on the PC? And have the power at the wall on?I usually keep it unplugged, because of the scary mains electricity, but if it's unplugged it not really earthed.What about plugging it in the wall, but leaving the wall switch off, in that case is it still earthed?
Do you really need an optical drive?