There is not a big difference between an atheist and an agnostic. They both don’t know whether or not a god exists. The difference is that atheists aren’t afraid to just lump god in with all the other stuff that we don’t have evidence for. There is no evidence against fairies or leprechauns, and no one knows that they don’t exist. But you don’t believe in fairies, they aren’t real. If someone were to ask you if fairies were real, you would say “no” with a good bit of certainty. This is because in our day-to-day lives, we don’t think in terms of absolute knowledge, but rather practical knowledge. There is no evidence for fairies, so we don’t believe. It would be pointless to spend the rest of our lives debating in our heads whether or not they exist. An atheist treats God the same way. No atheist knows there is no god (even Richard Dawkins admits this), but can still say with certainty that one doesn’t exist based on a lack of evidence. So come on agnostics, make the switch! Treat god like everything else.
Similar to fairies, leprechauns, the Lochness monster, and Bigfoot, God to me seems to be a human construct. Who wrote the Bible? Humans, of course. Whether or not God guided the hands of those humans is something that Christians cannot demonstrate, so why believe it?
Being agnostic is good in that you recognize the state of your knowledge about god. You don’t know, and may never know. There’s no proof either way. These are true statements. However, they are also true for other issues such as mythological creatures. So in reality, an agnostic doesn’t believe, and is simply admitting the fragility of their knowledge. However, we shouldn’t hold God on such a pedestal. Your knowledge is fragile in every area, and you can’t be agnostic about everything. What you believe and don’t believe is all about evidence.