Atheists, tell me, a Roman Catholic: why should I become an atheist?

[Astreja]

I'm intent on trusting in God, hoping that if he exists, he's guiding me into the right direction. I need to be careful that my faith/beliefs aren't ultimately decided by temptations or how I want to live my life – but what I genuinely feel is accurate. I do feel in this case that I have to stay somewhat objective...otherwise I won't be able to rationally decide whether I consider God to be real.

Whether or not you remain a believer, Balaco, trust in the good you see in yourself and others and strive to live with integrity.  A good god will not fault you for it, and a world devoid of gods will shine all the brighter for the effort.