I am thankful that tough times end.
Usually they don't end as quickly as I would like them to. And there are many tough things that won't end until I'm dead, but they will end.
I love that simple fact.
I don't like being in the trenches of a cruddy time, but I very much enjoy looking back at it from the end and all that brings- relief, gratitude, reassurance, sometimes pride (haHA, I did it!) and sometimes guilt (could have handled that better...), a little more wisdom, stronger faith, stronger bonds with those who were in it with me, etc. etc. etc.
What are you thankful for today?