Your current character has very high stats and could be good at any direction you wish to go.
I'm uncertain of your definition of a 'broken' character but my assumption is a character so powerful that it 'breaks the game' by making every other character obsolete. Don't pursue this. It detracts from the fun of the party and in the end it is not fun to play a character which can do everything.
My impression is that you do not wish to play a support character. Your character could pretty easily be a front liner, especially with the lineup you described as your party mates, which may be more fun for your playstyle.