"Jesus cannot free anybody from sin. Only abstaining from sin can free a person from sin"
See, there you go again, picking and choosing to suit your own agenda. Here's the relevant part that you missed.
"But if we walk in the light, as he is in the light, we have fellowship with one another, and the blood of Jesus, his Son, purifies us from all sin."
In case you missed it tHE BLOOD OF JESUS, PURIFIES US FROM ALL SIN.
"Only abstaining from sin can free a person from sin"
And Christ was the ONLY person who abstained from sin, so where does that leave YOU?
"9 What shall we conclude then? Do we have any advantage? Not at all! For we have already made the charge that Jews and Gentiles alike are all under the power of sin. 10 As it is written:
‘There is no one righteous, not even one; 11 there is no one who understands; there is no one who seeks God. 12 All have turned away, they have together become worthless; there is no one who does good, not even one.’
22 This righteousness is given through faith in[h] Jesus Christ to all who believe. There is no difference between Jew and Gentile, 23 for all have sinned and fall short of the glory of God, 24 and all are justified freely by his grace through the redemption that came by Christ Jesus. '
BTW, the word 'all' means ALL, which includes you I'm afraid.
