36 When one of the Pharisees invited Jesus to have dinner with him, he went to the Pharisee’s house and reclined at the table. 37 A woman in that town who lived a sinful life learned that Jesus was eating at the Pharisee’s house, so she came there with an alabaster jar of perfume. 38 As she stood behind him at his feet weeping, she began to wet his feet with her tears. Then she wiped them with her hair, kissed them and poured perfume on them.
39 When the Pharisee who had invited him saw this, he said to himself, “If this man were a prophet, he would know who is touching him and what kind of woman she is—that she is a sinner.”
40 Jesus answered him, “Simon, I have something to tell you.”
“Tell me, teacher,” he said.
41 “Two people owed money to a certain moneylender. One owed him five hundred denarii, and the other fifty. 42 Neither of them had the money to pay him back, so he forgave the debts of both. Now which of them will love him more?”
43 Simon replied, “I suppose the one who had the bigger debt forgiven.”
“You have judged correctly,” Jesus said.
44 Then he turned toward the woman and said to Simon, “Do you see this woman? I came into your house. You did not give me any water for my feet, but she wet my feet with her tears and wiped them with her hair. 45 You did not give me a kiss, but this woman, from the time I entered, has not stopped kissing my feet. 46 You did not put oil on my head, but she has poured perfume on my feet. 47 Therefore, I tell you, her many sins have been forgiven—as her great love has shown. But whoever has been forgiven little loves little.”
48 Then Jesus said to her, “Your sins are forgiven.”
49 The other guests began to say among themselves, “Who is this who even forgives sins?”
50 Jesus said to the woman, “Your faith has saved you; go in peace.”
Please pay attention to the words Jesus said and think about it.
God loves us even though we are sinners. As mentioned in Mark 2:17 "On hearing this, Jesus said to them, “It is not the healthy who need a doctor, but the sick. I have not come to call the righteous, but sinners.” Regardless of your sin, our sins should not come between us and God. No sin is too great, God's grace is greater.
We must be reasonable and allow Jesus time to help us. I think it is unrealistic to think that our sins will be cured over night. From my personal experience with God, He tends to refine us slowly...I guess that is the best way. So if you are still sinning after a long period, don't despair! Be patient and persevere.
Lastly (and this is from personal experience), don't let the conduct of other Christians come between you and God. Some Christians are very mean and say the meanest things. TBH some of the worst people I know are Christians. But hey, aren't they sinners and thus "sick" too. We should give them some slack shouldn't we. Besides, why should your relationship with Jesus be affected by imperfect people who lack wisdom.