2 Cor 12:7-10 Therefore, that I might not become too elated, a thorn in the flesh was given to me, an angel of Satan, to beat me, to keep me from being too elated. Three times I begged the Lord about this, that it might leave me, but he said to me, “My grace is sufficient for you, for power is made perfect in weakness.” I will rather boast most gladly of my weaknesses, in order that the power of Christ may dwell with me. Therefore, I am content with weaknesses, insults, hardships, persecutions, and constraints, for the sake of Christ; for when I am weak, then I am strong.
At these lowest of times, when we can no longer stand on our own and walk, Christ cradles us in His arms and does the walking for us.
Hang in there. Not for yourself, and not even necessarily for your wife. Do it for those three innocent blessings whose care God has entrusted to you. Let them see and never forget that their father loves them unconditionally and will do whatever it takes to protect them. It may be agonizingly humbling, or steadfastly and silently strong, but do it anyway.
And know that prayers are being said for you that you may have wisdom, strength, and peace.