Is it normal to faccet your personality

Ok first time publishing on this site so here goes.

I have always fragmented myself mentally. I have logical me, evil me, "normal" me, and a few others all have their functions and are useful. I switch between them as needed. Its not spilt-personality disorder because the different "me's" are not different. They are simply faccets of my greater self. I can use one or more faccets to overpower, re-enforce or even destroy others. I usually operate with Logical mode in private, or evil if i feel stab-happy. In public its usually a mix of normal and logical. Once upon a time i had "emotional" me. I used logic and evil to overpower and if not destroy at least imprison him. I can create new faccets like when i had a long term relationship. I created "boyfriend" me. He was the best i could make him. However the relationship ended badly when she cheated on me. Boyfriend me held residual affection for her despite clear evidence not to. He was destroyed and completely removed from the cortex.

Its hard to explain but all of these faccets are part of me. But none are the real me. I use the word faccet because its like shining light through a crystal each colour is part of the whole yet only a refraction.

Now i'm starting to use the terms that i use in my own head so i'll wind this down. But lets get on thing clear, i am at all times in control of these faccets. I use, upgrade or discard them as is nessicary.

So my extremely long winded question is does anybody else (through whatever metaphor) have the ability to shape their personality. Adapt and change aspects of their person at will. It has been said and there is evidence to support that i'm a sociopath (no empathy towards humans). Does a lack of moral complications make this process easier.

I would be interested to hear other peoples ideas and mindsets. Logical me loves new data about people.