I believe that suffering is a hidden mercy.
I think Islam helps you become psychologically ill. Did I do tawba well? Did I meet the conditions of tawba? Did I do the wudhu well? Did I say astagfirullah 33 times or 32 times? Did I say alhamdulillah?
How can suffering be a blessing?
If you can be thankful to Allah for the good things, why can't you blame him for the bad things?