If you reject Jesus Christ and choose your own belief system after hearing the gospel but you are a good and sincere person - will you go to heaven?
The following links should assist you in better understanding the Catholic Church's teaching on salvation for non-Catholics. If you have any further questions or concerns that are not answered by these links, please contact Catholic Answers directly.
]Is Catholicism the only true religion (Christian)?
*] Do suicide bombers go to heaven?
*] *Extra ecclesiam nulla salus
*] Salvation Outside of the Church
*] What is invincible ignorance?