Do you not believe in it, or are you, as you stated, just skeptical? That would make you an agnostic. It's true that agnostics don't have a belief system, as by definition they don't know what to believe. Atheists are another matter.
So completely wrong and people are modding this insightful?!?
A skeptic and an agnostic are not the same thing.
An agnostic is not defined anything like "they don't know what to believe".
An agnostic is one who thinks that it is not possible to know whether or not there is a god.
A gnostic thinks that it is possible to know whether or not there is a god.
Gnosticism speaks to what can be known, it doesn't say anything about belief.
So if you think it's impossible to know whether or not god exists, but choose to believe that he does, then you are an agnostic theist.
If you think that it is possible to know that (whether or not you actually do know) and choose not to believe, then you are a gnostic atheist.
The other two combinations are left as an exercise for the reader which I would suggest you actually do since you are this badly informed on the topic
"As a defense mechanism, they attempt insults or ridicule, rather than engage in reasonable debate."
That's known as projection on your part.