I understand your belief. Saved by grace through faith, continued salvation hinges on observing the law, and, to you nigh on perfect obedience to the law
Paul tells believers they are not under law but under grace. Being under law is being under righteousness of obeying the law. Your view is the same as sda members. You are not under law as long as you perfectly obey the law.
The fist casualty of your belief is love. Let me tell you, and I have decades of experience. No one who preaches nigh on sinless perfection lives up to what they preach, and they cast aside the second greatest commandment in doing so. Do you even try and obey each and every command of Christ? No you do not.