Welcome to the forum.
Christopher Hitchens was once asked by an American, "Do you love us or hate us (i.e. Americans)?", to which Hitchens replied, "It depends on how you behave." I believe such a response should apply to everyone.
Addressing your opening post, I am curious, would you also refuse to say that unicorns do not exist? Would you label yourself as an agnostic about the unicorn question or as an aunicornist?
I find it a little unfortunate that atheism requires its own label. I can't think of any other belief, the doubt of which attracts a label other than 'scepticism'. One is a sceptic of UFOs, conspiracy theories, ghosts, the afterlife, psychics, divination, dowsing, climate change, the holocaust and fairies, but if we're discussing gods, one is either an agnostic or an atheist or an agnostic atheist or a gnostic atheist or a deist or a theist or a pantheist or an ignostic. How much do you believe or not believe in gods? Just a little or a fair bit or a lot or completely? Only with god beliefs is such detailed definition of one's position demanded.
I wish it weren't so, but alas! For what it's worth, I don't believe in any gods, I doubt the existence of gods, but I cannot categorically say that I know that gods do not exist. Therefore, based on accepted definitions, I am a... sceptic.