@TJ
Thank you for sharing these undoubtedly personal revelations and experiences you've had; I'm glad to see that everything, in the end, has worked out and that you've found your own happiness. In my opinion, the best thing a man/woman can do is forge their own beliefs in life, and create their own paths.
I would like to share my own beliefs and how I came to them.
Like many people, I was raised a Catholic. However, my family is not very, shall we say, "zealous" when it comes to our religion. We all received our sacraments, yet we rarely attend mass, nor do we attend confession on a regular basis. Having been enrolled in catholic school, I have attend masses and confessions through my school, but now that I've moved on to post-secondary education, I doubt that I will continue to do so.
So throughout my entire life, I've subscribed to the Catholic belief system, but I do not consider myself to be a religious person at all; I don't reflect upon my beliefs or my religion. One day, a friend on mine asked me what I believed in. Since I knew I wasn't a "good" Catholic, I told him so, and that I wasn't sure what that made me. He explained that if I didn't believe in my religion (or any) that I was an atheist (a term I had never heard at that time) or an agnostic (if I didn't believe in a higher power, but was open to the possibility).
But even then, I disagreed. And this is the part I've (personally) had trouble figuring out. I didn't think that I should be named atheist, because I didn't disbelieve. But I didn't think I deserved the title of Catholic, because I do not practice my faith, and don't truly believe. I couldn't give my friend an answer, and for a long time afterwards, I thought about his question.
After much deliberation, I finally found an answer. I found that my belief system was non-existent. I didn't need to be an atheist, or a catholic, or an agnostic, because it didn't matter to me! What truly mattered to me was not the practice of rites and rituals, but the practice of being the best, hard-working person I could be. I know that morals and ethics are not a concrete science; but I am resolved to help others to the best of my abilities, to be as selfless as I can, to work towards my goals as hard as I can, to be a good friend, an even better family member, and when the time comes, the best husband/partner/lover/boyfriend I can be.
Nobody is perfect (because "perfection" is completely subjective) so I will make mistakes, and I will learn from them. So this realization, much like the OP's decision to become atheist, is what makes me happy. And just like the OP, I hope my realization/decision will help others sort out their beliefs.