See my thread about living stealth for long periods there is a lot of great posts there.
I lead the double life. Here's the thing
A really good therapist is crucial. Mine saved my marrage. It takes a lot of work, and discovering each others comfort zones and sticking to them.
My wife and I are not roommates, I sleep in her arms every night. But this came at great cost.
The dysphoria crushed me but in my particualar case I have no desire to go out the front door transitioned visibly. Don't know why, its unusual for a mtf and I am definitely TS.
We have a Christian section on the board with some real good folk in there.
You can try stealth in a conservative church that doesn't gay bash. I am stealth in a pentacostal church. Its none of their business, they wont understand, and the research can be found here on acceptance and peace with a strong belief system.
Sacrifices for the wife and kid are worth it. I have one kid that can't even handle my fingernails. I brought her with me to the shrink. It helped.
It is unpredictable how HRT will affect you in the future. It affects us all differently. I still don't know how it will affect me.
The decision for HRT is not a light one. Research it carefully, examine the consequences. Then make an informed decision, and wait for that hormone letter, the shrink is supposed to have your best interest in mind. And full time experience is not required for hormones, I did not have to do it.
Vent out your concerns here and with professional help.
Know you are not alone.
Know you are not cut off from Christ, He knows how to take you through this, He did me. Again go to our Christianity board.
The dysphoria is powerful, don't underestimate it. Professional help is essential especially when loved ones are caught up in it.
Finally, I have a wonderful, happy family life. Time will tell if it is sustainable, but I have high hopes that it will be.
We are all different. Be totally honest with yourself and deeply sensitive to what others can and cannot handle as they go through the shock experience. It's real hard on them. Don't give them more than they can handle and don't lie to them.
There is a lot for you just understanding your identity right now. Nurture them, play with them, understand them, love them, and don't cross into their discomfort zones unless you have to. In time those zones may change. That may save your marriage. The dysphoria asks a lot of our wives, and so do we.
God Bless. Seek His heart in prayer. You will know the answers if you can get your fear out of the way and hear Him.