Admitting You're a Sinner

[Succubus]

Im not versed on all the different definitions... agnostic, agnostic atheist, gnostic atheist, atheist, anti theist... etc. It seems different definitions are given for each every time definitions are given. Im not sure if there is like an official source that defines all these.

Like an official source that defines with zero ambiguity, the Catholic Church's stance on original sin, a stance that is not open to interpretation by Church members? No, I'm afraid not.
But then just a few months back you took part in a discussion on this exact topic. You must have absorbed and understood what was said otherwise you wouldn't have kudo'd the posts that clarified the issue.

I am just as confused as ever on the difference between agnostic and atheist.

The colloquial usage can be confusing because it's nearly always used incorrectly.  The (incorrect) popular thought among people who aren't familiar with the terms is that agnostic = i don't know if god exists, and atheist = I know god does not exist.

The actual meaning of the terms (or more accurately, positions) are slightly different and actually pretty easy to understand.

A/gnosticism addresses knowledge - an agnostic would say that the existence of god is unknown/unknowable, that we can't say that we 'know it to be true' that a god exists or does not exist, whereas a gnostic would be the opposite - they would say that you can know for sure whether or not a god exists.

A/theism addresses one's belief - a theist would say they believe that it's true or likely true that a god exists (with any attendant doctrinal/religious details), whereas an atheist would say they do not believe that a god exists.

The terms are not opposite ends of a spectrum, neither is agnostic a 'middle' position.  A/gnosticism and a/theism describe two different things.

I am an agnostic atheist.  I don't think we can know for sure if a god exists or not, but i currently do not believe that a god exists.  

Many theists are agnostic as well - they don't claim they know for absolute certain that a god exists, but they believe that one does.  Gnostic theists would obviously say they believe that a god exists, and also that they KNOW for certain that god exists.

So there isn't really such a thing as simply "an agnostic," because that doesn't tell you at all what they believe.

Or are you 'just asking questions'?

My highlights.