Ouch! Not to be an ass, but it gives me comfort to know that I am not alone in huge losses. All we can do is pick ourselves up and keep pushing forward. I was just talking to my friend @steve.varner the other day about this. He has had a lot of successes in life, that in my opinion are due to his persistent positive attitude and never giving up.
Also, I don't always apply this rule, but I think it is wise to wake up every day and look at everything you have as a snapshot of what you are starting the rest of your life with, and work forward from there; leaving the past behind as if it never existed. As if you were dropped into the world with your current holdings and life situation. Aaaand go.