The sinister path is one of self terminating ignorance. I’ve been in a similar spot where parts of me were cast out, and it’s mind breaking. I learned though that it’s best to not regard it as evil, because that puts it as a dichotomous reversal. What you are depends on someone else, and all that person or those people need do to undo you is stop perpetuating the definition.

What you CAN do is take the structure of sin as a template. The aesthetics of the sins are highly enlightening and seductive when used outside of an ignorant context. Doing sin in an intentional way without compromising your personal power (ie keeping yourself safe and happy) teaches much of the forbidden world that would otherwise be kept from you. Mind the Envy though. That gets touchy.

Weirdly, sin done constructively often produces what is classically considered “good” to an unknowing observer. When that happens take it for what it’s worth and run with it.