I Need Advice, I Need To Figure Out My Religious Status?

I live in the Bronx in New York, and I was born and raised here, I have Ghanaian descents, and my father and a few of my uncles are currently Muslim. There are no muslim women in my family except for my younger sister. I am young, 13, and I am afraid. Afraid of what? Afraid that my whole mentality state would completely disemble because of my anxiousness and my various accounts where I do nothing all day but sit there and think, hard. My mother and my older sister raised me as a Christian until my father took over and raised me as a Muslim. And I currently attend a Catholic Middle School, so yes it is likely I would be confused. But now I feel like Catholicism has too much mysteries for me to understand completely, so does Christianity and Islam. There are too many "ifs" and "maybes" and "perhaps", and yet people are so sure that they're faith is the right one. Islam is too intolerant and I vomit at the thought of women being treated like a lower cl, as if they are animals. Little girls getting married to old men, that just makes me sick. The Muslim community I know now are nice except they are a little stubborn and refuse to admit that there are some faults in their religion. I was taught that Muhammad was a great man and he did this and that to help this and that, I know all of that. But now I'm seeing and hearing stuff that he was murderer and he was a pedophile, raping 9 year old Aisha and attacking the Jewish tribe. You see? There is too much confusion in all of this. I just want to live a happy life with a free mind. I believe in God and yet I am just not sure if I belive in all of that extra stuff. Those stuff that are "paths to happiness", I feel like the only path to happiness is just by following God and being a good person. Nothing more. Maybe being Protestant is better. Because it is simple and maybe they tried to inflict their idealogy on other people, but the fact of the matter is, Martin Luther was just like me, tired of having to follow what people told them and having to figure to many stuff out or just leaving it and letting become a mystery while you believe in it? I mean come on. Sometimes being atheist is an option here too. Idk, I just want to live a life where I have to stop asking myself "What does that mean" or "Why is that", and being disappointed because "I am not to question". Help, I need the help I can get while I still have my youth, because I don't want to spend my life thinking, when I can just be enjoying it.