There is only a couple skills you need to be good with computers. One of which is the ability to type things into google. Seriously... 90% of the time that is what the IT guy is doing. Either that or just randomly clicking in the settings until stuff starts to work.
Everyone is bad when they start out. Computer Science skills are learned mainly through experience. Just following tutorial after tutorial until you begin to figure stuff out without them.
I think the same is true of many things now a days. The difference between a novice and an expert is experience and experimentation. The only area I can really consider to be an exception is sports in which natural ability can be a key component.
If you want to be good at something, just try and keep an open mind. Don't be afraid to try things a different way and don't be afraid to look for help and/or information.