Is it wrong of me to let go of islam?

I was born into a "yemeni muslim family"(notice how I put it quotes) and ever since I was little My parents never told me much of islam other then the sins and things that aren't allowed in it.I Use to go to the mosque but whenever im hearing things there it all seems like bullcrap,I keep on wondering why god would cause all this suffering in this world and in my family.My sister says if god gives you more suffering that means he loves you more,but why would anyone do that?would you go and make your parents suffer because you love them?Also it seems as though islam is contradicting it self one moment it talks about how all religions are equal and that muslims should leave other people alone and then another moment it talks about why muslims should hate jews and look down on the chirstans for not converting into the right path.Ever since I was little(around 8years old) I felt like abandoning islam but I kept on thinking of what my parents would think and that I would be a disgrace to myself because im a yemeni arab and I felt that it wouldn't be right but no I don't care about islam nor any other religion its all bullcrap to me...I tried to seek the true path of islam but recently going to a mosque a few days ago but it didn't make a difference and it seems as though when I'm praying to the carpet rather then god.