Jeremiah 2:35 “And yet you say, ‘I have done nothing wrong. Surely God isn’t angry with me!’ But now I will punish you severely because you claim you have not sinned.”
It is not so much your sin. I expect you to sin. You are not perfect, you are flawed, you are impressionable, you are subject to your emotions and your whims. This is what is most egregious: that you claim not to have sinned. You excuse all of your bad behavior. You excuse all of your flagrant sin. You explain why what you do is really ok. It is not. It is sin. Nothing you say or believe will change that. Nothing you tell yourself or others changes the nature of your actions. Sin is sin. And I will, if you do not repent, punish it strongly.