Multiple Personality, do u have it?

i felt that i have some split personality in me since few years ago
but, its nothing like Dr Jekyll & Mr Hyde i still remembers what i am doing and such
my memories will be still there, just that the way and style of doing things would be slightly different

i noticed it because back in those days when i draw everyday, sometimes i am in a groove of Gothic style, another time i am good at Model style, Clean style and Mysterious Magical style...

switching in those personality makes me stay in the best shape of myself in maths, logic, drawing or reasoning... etc
but then, switching through these personality is unpredictable.
and i havent figured out a way to stay at the groove or "summon" it out for competitive advantage.

maybe i would be able to write a book if i would found out the way to inter-switch the personality among myself.
by the way, i am in a down mood which not motivated and feel like beating up something.