Think of the pc as a car. It's only ever as good as the person behind the wheel. Tinkering and fiddling generally comes with the pc. So don't ever expect things to just work, because it doesn't all ways just work out that way and it can get frustrating if you don't know much about computers and how to work them.
@ribstaylor1: Thank You so much for the response. I have been doing research on computers on and off for a couple of months,but if there is any problems,my dad is my first line of defense (knows a thing or two about computers) coming here on the forums will be a next defense after that.