If i watch porn dream about having sex cuss lie and steal im not going to heaven am i?

i try my best not to do all of these things but its my age im mad at im only 11.Can someone explain this to me and is god going to destroy the world again like he did with the flood but something different.I repent now and then but sometimes i think hes given me to many chances yes i know Jesus died for our sins but i dont know.I sometimes think im satans daughter or something (does he even have a daughter??)