I had to read your post very carefully because it sounds exactly like my life. Two schools of thought are number one the best case scenario where your wife will accept her husband being a sissy cocksucking slut. Or secondly she will not and it will as you say hurt very deeply your family.
The only prudent action would be to errors to the side of safety and be a sissy cocksucking slut all you want but do not cheat on her or tell her you have.
You will win on all accounts because you have saved your family from failing and two you still enjoy your sissy side.
Keep in mind you can be a huge whore and love something very much and not act on it. So you wear panties and stockings and love pumping your pussy hole for fun? That's great and I hope you thoroughly explore all of these feelings you have. Your safety net will be you are fantasizing about her doing things to you.
You can have a happy and fulfilling life being a pussy boy all you want, do not deny yourself that. Be glad you feel this way and see it as a good thing.
You are a pussy boy number one so no sense changing that.
Work on drawing that line in the sand of not cheating on her but enjoy expressing your sexuality in an other way.
What was your previous gay sex you spoke about? It's good to experience that fully. Did you ever have a gay relationship with someone where you were his woman?
Great share, I look forward to reading back on your progress. Your mirror.