So how can anyone expect to make it to Heaven if your interpretation is correct? Do you honestly think merely accepting Jesus Christ into your heart will suffice and that you will never again sin after that?
Yes, and no.
Yes, believing is all that is required to be credited with righteousness, just like Abraham believed God and it was credited to him as righteousness, before he even did ONE action.
Nobody ever made the claim that accepting Christ equated to living a sinless life.
Of course we’ll sin again. Everyone does. If we claim we don’t then we’re liars. (1 John 1:8)
But we’re forgiven.