The issue is that you do not realize that we will all stand before the Lord at judgment and give account of ourselves rather good or bad. (Romans 14:10-12, 2 Corinthians 5:10)
Those that where disobedient to His teachings are appointed with the unbelievers (Luke 12:46), and Apostle Paul says this;
Those who are disobedient to His teachings ARE unbelievers.
Romans 2:6-10
Who will render to every man according to his deeds:
To them who by patient continuance in well doing seek for glory and honour and immortality, eternal life:
But unto them that are contentious, and do not obey the truth, but obey unrighteousness, indignation and wrath,
Tribulation and anguish, upon every soul of man that doeth evil, of the Jew first, and also of the Gentile;
But glory, honour, and peace, to every man that worketh good, to the Jew first, and also to the Gentile:
Be careful with these passages of scripture. I hear Roman Catholics quote Romans 2:6-10 to support salvation by works and this sounds like what you are teaching as well. Notice in Romans 2:6-10,
patient continuance in well doing, seeking for glory, honor, and immortality; (vs. 7) is not set forth as the means of their procuring eternal life, but is a
description of those to whom God does render life eternal. Notice that
ALL who receive eternal life are
described as such, everyone who does good (vs. 10). Good deeds flow from a heart that is saved and evil deeds flow from a heart that is unsaved. Verse 8 - but to
those who are self-seeking and do not obey the truth, but obey unrighteousness--indignation and wrath. Notice that
ALL who do not receive eternal life are
described as such, everyone who does evil (vs. 9). What those passages convey is that though our deeds are judged by God, it's not the good deeds themselves which are the basis or means of salvation, but the type of deeds expose whether our heart was saved, or not. Good deeds are produced out of faith, thus "everyone who does good." Deeds produced without faith are tainted with sin, thus "everyone who does evil." Without faith it is impossible to please God. Good works are involved as the FRUIT, but not the root of salvation. If Paul wanted to teach that we are saved by our deeds/works, then he would have clearly stated that we are saved by grace through faith AND works/deeds in Ephesians 2:8 and that we are justified by faith AND works/deeds in Romans 5:1 but that is clearly NOT what Paul said.
The only ones who receive eternal life Paul and Jesus both show is those who continue in faith obeying His teachings!!!
You just described genuine believers/everyone who does good; not unbelievers/everyone who does evil.
Hebrews 10 is about judgment that takes place after death, as the previous chapter clearly showed as the writer does not change the context of what he is talking about from chapter 9 to chapter 10.
Hebrews 10:26 - To "sin willfully" in the Greek carries the idea of deliberate intention that is habitual, which stems from rejecting Christ deliberately. This is CONTINUOUS ACTION - A MATTER OF PRACTICE. Now we don't walk along our daily life and accidently fall into a pit called sin. We exercise our will but, the use of the participle clearly shows a CONTINUOUS ACTION. The
unrighteous practice sin - 1 Corinthians 6:9-10; Galatians 5:19-21 and
not the righteous, who are born of God - 1 Corinthians 6:11; 1 John 3:9.