I think it's important to be out of the judging business.
What I mean is if you're honest there's no way to prove either perspective beyond any doubt. At least not in my mind. Oh you can make a case for a supreme being and you can make a case for not having one. But neither are absolute.
My wife has been feeling the same as you actually. For me I can't get past evolving from a single cell. Seems too much of a stretch. Again though after what we've experienced and the hypocrisy in general in religion can you blame a person for not believing in God? I can't. Add to the fact that if you believe the bible God killed a lot of folks. If a person today did what God supposedly did in the bible we'd call them a mass murder. There would be no justification.
In my mind then it is important to not be in the judging business. If there is a God do you think he would be offended for you being confused? He wouldn't if he is in fact loving for the multitude of religions and beliefs at a minimum have been horribly muddied.
Perhaps then, instead of focusing on your perspective you discuss both. How both have holes and that you shouldn't judge one another. For my wife and I that is where we are at. We accept that neither perspective can be proven without a doubt. As such we simply discuss the possibilities of both sides accepting the opposite perspective as a distinct possibility.
Best wishes...
H