Painful Conversation

Conversations have been painful, extremely painful, for the past 2 weeks at our house. Not the kind of pain that causes one to cry. Painful in its complications. Painful in its slow process.
Prema and Isaac have both reached the developmental stage of playing with others instead of mirror playing. They also are in that "mine" stage, where sharing becomes impossible in their eyes. With Prema home full time again for some of the summer, I feel like crying, ripping the hair out of my head, or just doing it for them by the time the end of the day comes, especially on Friday. This stage is hard enough when you have a normal situation. But instead we have a deaf child who can only sign and doesn't fully understand and/ or fully engage half of he conversation involving her AND a very smart hearing child that understands everything but struggles to sign at the level he speaks/ thinks. So with EVERY conversation held between Prema and Isaac I become referee ("don't hit... sign", don't take that... sign), sign language teacher, external moderator ("pay attention", "look at her/him", "think about what he is saying"), and interpreter of unclear signs. Its painful to watch and be a part of. With each situation I struggle to not just take over and interpret every interchange. At least Isaac is willing to sign again (he used to get frustrated that he couldn't get his fingers/ hands to look exactly like an adult's signs) and Prema is patient enough to physically stand waiting for Isaac to sign.