Can you persuade me from Agnostic to Atheist?

[FatAndFaithless]

The bolded sentence is the definition of an atheist.  

But hey, nobody can force you to call yourself anything; you can use whatever label you feel comfortable with.  It's just that when you're talking about the concepts and ideas behind the words it's important to be clear.  From the words that you've used, I would call you an agnostic atheist (like most people here).  That means you don't accept the claim "A god exists" but you also DONT make the claim "A god does not exist."

Maybe it comes down to your source.

My source says they (atheist and agnostic) are two different things.

I want to be convinced totally that there is not a God.

Well, again, we're more concerned with the concepts behind the terms you're using.  Atheism is just 'lacking a belief in god.'  Some people use the word "dis-believe," which I don't like because it's a muddy term that some say means "actively affirming the inverse" while other say it is interchangeable with "lack of belief."  

It's a weird situation because there really isn't a singular term for the position "I believe there are no gods."  Some people use the term "strong atheist" or "gnostic atheist," but I think those are problematic as well in my opinion.  

Atheism is a response to a single question: "Do you believe that a god exists?"  That's it.  No other question is addressed other than that one.  

The question "Do you believe that god DOESN'T exist?" is a different question, which is why I am not totally happy with the use of 'atheist' to answer that question.  

As an agnostic atheist, here are my answers to the questions.

"Does a God exist?" -->  I don't think it can be known/I don't know.  --> Agnostic.
"Do you believe that a God exists?" -->  No, I don't have evidence to lead me to that conclusion.  --> Atheist.

"Does a God NOT exist?" --> I don't think it can be known/I don't know. --> Agnostic.
"Do you believe that God does NOT exist?" --> No, I don't have evidence to lead me to that conclusion. --> ???

There isn't really a term that describes that last answer.  Because I would not accept the statement "A god exists," but I also wouldn't accept the statement "No gods exist," because I don't think either statement can be verified. Until we find a word to describe someone who actively asserts that "No gods exist," it's going to continue to be a muddy situation. Which is why there's half a dozen posts per month confusing the meanings of agnostic and atheist