I don't know...I hope that we are together in two years. There appears to be two approches here. First of all I am not detached and still trying to figure that out for myself.
Stop being an Engineer. (I can say that)
You are already setting deadlines for accomplishments. I know - that's what we do for living.
She is not a project or an airplane engine.
All you have control over is yourself.
So set your own goals.
When will HIH be detached? Has HIH received the specifications to "detachment". Can HIH follow the specs and complete the project within the given timeline.