Also, another thing I see a lot is the argument of "why can murderers and rapists magically go to heaven if they just ask for forgiveness?"
Well, it doesn't work like that.
Firstly, if you were a TRUE Christian, you wouldn't be doing anyways.
Secondly, You can't just go to heaven just by asking for "forgiveness".
You have to devote your life to ACTUALLY being sorry and ACTUALLY promise to not do it again, and not just "apologize" just to get into heaven.
God will know if you're being truthful or not.