I've been bi for a long time but i know it's wrong if you want to be a jw...
It's hard being any kind of anything other than what they expect and tell you to be. That goes with sexuality, health care decisions, marriage, social events, career, possessions, the list is endless. Sexuality is one of the many ways in which they want to control their people.
I understand not having a healthy way of expressing your sexuality being a severe stressor, but I wonder if that's the only thing from that organization that bothers you.