Religion

I'm going to start by saying I'm agnostic, and I don't dispute the belief of a God. Maybe he's there, maybe he isn't. Faith is a gift, and apparently it's a gift I'm not meant to have. I don't want to offend anyone here, I respect your beliefs and I'm not going to mock you for it.
Christianity confuses me. God is God, but Jesus and the Holy Spirit are also God? Well who the hell is Jesus now? God? Human? So, he's like a cyborg? And the Holy Spirit is a God/bird thing? Like Zapdos? What? Okay, God created everything in the world in 7 days? Alright. Well, I don't think that makes any sense to me any more. There's pretty concrete evidence that evolution is real. When I think about creation logically, I know that living things are made up of cells, and molecules make up those cells and the things that are nonliving. I know atoms make up every molecule. I know that subatomic particles make up atoms. But then what? Where did these atoms come from? I suppose in a way, I do believe in a God, just not the way most religions believe in God.
I don't understand why we need to be in a specific building to be with God. Organized religion is just a way to make people more powerful. It's just another government. Vatican City is simply a city in Italy devoted to Christianity and the Pope, right? It became it's own country. Religion is (in my humble opinion) is THE most powerful force in the world. For instance, I could head out to the middle east, and start digging around for a while in the sand. "Find" a book from God, and write it myself. People would follow what's in that book TO THE LETTER because it's from God. The Israelites of ancient times mutilated their genitalia because God told them to. Uhm, if God told me to cut off the tip of my penis, I'm pretty sure I'd be begging for something else like not eating pigs. But I digress, this paragraph is about organized religion. I think (if there is a God), then God is inside us and we don't need to be in a church with old, backward, rituals. Respecting nature, being out in what God created for us is better in my opinion than destroying his forests to make a church.