I would like to play a Bhaalspawn in my DnD sessions, but I'm afraid my skills are not honed enough to do that. My doubts are the following:

1) How much of an impact should my divine heritage have on my roleplay? What I mean is, I would like additional options to roleplay, not fewer. I feel like a Bhaalspawn would probably have an impulse to murder and stuff of this sort, but I'm not sure exactly how to make it work, especially in a group session.

2) How would you roleplay the difficulty of being a Bhaalspawn? Wouldn't a godchild feel the impulse of killing differently?

3) Should I avoid being a bhaalspawn ?