Am I pressing on?
A quick thought.
"Can't is not a word; it consists of CAN and NOT. Which one are you?" (M. Roger's Mom). I must say, "I like this statement". It reminds me of another by P. Huysamen, "Don't tell me what can't be done, tell me what can."
This attitude (not in our ability, but rather through Christ working in us) is displayed in Abraham's life, "who against hope believed in hope, that he might become the father of many nations; according to that which was spoken, So shall thy seed be. And being not weak in faith, he considered not his own body now dead, when he was about an hundred years old, neither yet the deadness of Sara's womb: He staggered not at the promise of God through unbelief; but was strong in faith, giving glory to God; And being fully persuaded that, what he had promised, he was able also to perform. And therefore, it was imputed to him for righteousness." (Romans 4)