Paul touches on this in at the beginning of his letter to the Romans.
God is a forgiving God and we are reminded of this over and over again throughout scripture, but Paul reminds us in Romans that just because God shows us His grace, this doesn't mean that we sin all the more. We all sin, ("no one is righteous"), but we're also taught to repent. To be transformed. To make every effort to be Christ-like.
Romans 3:20 Therefore no one will be declared righteous in his sight by observing the law; rather, through the law we become conscious of sin.
We are not justified by our works but by our faith:
Romans 5:1,2 Therefore, since we have been justified through faith, we have peace with God through our Lord Jesus Christ, through whom we have gained access by faith into this grace in which we now stand. And we rejoice in the hope of the glory of God.
Like many on this forum, I won't say "yes you are going to hell" or "no you aren't." That's between you and God. Christians are warned about passing judgment on each other:
Romans 12:1-3 You, therefore, have no excuse, you who pass judgment on someone else, for at whatever point you judge the other, you are condemning yourself, because you who pass judgment do the same things. Now we know that God's judgment against those who do such things is based on truth. So when you, a mere man, pass judgment on them and yet do the same things, do you think you will escape God's judgment?
Verse 4 goes on to explain why God shows us all such grace:
Romans 12:4 Or do you show contempt for the riches of his kindness, tolerance and patience, not realizing that God's kindness leads you toward repentance?
Paul is very clear in his message to the Christians, though, that we are not to take advantage of God's grace. That this doesn't mean that sin is OK. That it doesn't matter what type of life we live:
Romans 5:20,21 The law was added so that the trespass might increase. But where sin increased, grace increased all the more, so that, just as sin reigned in death, so also grace might reign through righteousness to bring eternal life through Jesus Christ our Lord.
Romans 6:1-7 What shall we say, then? Shall we go on sinning so that grace may increase? By no means! We died to sin; how can we live in it any longer? Or don't you know that all of us who were baptized into Christ Jesus were baptized into his death? We were therefore buried with him through baptism into death in order that, just as Christ was raised from the dead through the glory of the Father, we too may live a new life.
If we have been united with him like this in his death, we will certainly also be united with him in his resurrection. For we know that our old self was crucified with him so that the body of sin might be done away with, that we should no longer be slaves to sin-- because anyone who has died has been freed from sin.
Romans 6:11,12 In the same way, count yourselves dead to sin but alive to God in Christ Jesus. Therefore do not let sin reign in your mortal body so that you obey its evil desires.
Romans 6:14 For sin shall not be your master, because you are not under law, but under grace.
As I said above, it isn't up to me (or any of us) to decide how God will judge you. He gives us grace and because of that grace, we are saved. None of us is "good enough" to earn heaven on his/her own.
Romans 3:23 24 for all have sinned and fall short of the glory of God, and are justified freely by his grace through the redemption that came by Christ Jesus.
And for this reason we should be humbled in God's presence and forever grateful for the greatest gift that He's given us. (Eternal life). Whether or not you have accepted that gift is between you and Him.
Romans 6:22,23But now that you have been set free from sin and have become slaves to God, the benefit you reap leads to holiness, and the result is eternal life. For the wages of sin is death, but the gift of God is eternal life in Christ Jesus our Lord.