Helricha:
I’m an Elder. And let me tell you something: Elders are NOT marriage counselors! We are supposed to give “spiritual guidance” only. Do you love your husband? Do you really want to fix your marriage? Look for professional help. (I noticed that apparently he is not a JW).
As you mentioned at the end of your post, you want to “salvage a relationship with Jehovah”. Jehovah knows everything. He knows what you did, and knows how your heart feels right now. Confessing to the Elders is the same that confessing to a priest or another human. They can’t do anything to fix your relationship with Jehovah. Talk directly to the one you need . And don’t be afraid of looking for professional counseling.
This may help you:
Psalms 86:5:
5 For you, O Jehovah, are good and ready to forgive;
And the loving-kindness to all those calling upon you is abundant.