On the healing of the invalid man, I see a character of a complainer in him. Those who beg for pity and blame casters are in this category too. Take a keen look at their conversation in vv6-8:
When Jesus noticed him lying there [helpless], knowing that he had been in that condition a long time, He said to him, “Do you want to get well?”
The invalid answered, “Sir, I have no one to put me in the pool when the water is stirred up, and while I am coming [to get into it myself], someone else steps down ahead of me.”
Jesus said to him, “Get up; pick up your pallet and walk.” Immediately the man was healed and recovered his strength, and picked up his pallet and walked.
The first question Christ posed on him was a simple one with a "Yes" or "No" reply, yet, the man tried to make excuses and as well shift blame to others on why he should remain probably to earn Christ's sympathy.
This is an attitude we nee to correct. In Matthew 7:7> Christ admonished us to Ask, Seek and Knock. Of the three ways of earning heaven's attention, none correponds to complaining an mumuring. For every situation we find ourselves, let's take the bull by the horn and be steadfast in faith that we can do all things. We are not meant for pity but for glory.
Stop the complain, stop the blame, open up and do what the Master bids you.
Thank you @reliquary