I just found this thread today and completely understand your situation. Dad's are supposed to be able to fix everything and when you are powerless to do that it's a real shot to your confidence. You can only place your situation in God's hand and be there for your entire family when they need you,and they will need you to be there for them.Situations like these certainly help us all to realize where our priorities in life should be. Hug your kids when you can,listen when they speak and pray for them every chance you get.
God bless you and yours.So great of you to share this with all the members here.