Trusting God means...trusting Him in all things. Whether it Be against Covid or any of life's many maladies and trials.
Perhaps no better example of correct praying is to pray with complete trust in God that He not only hears your prayers but has made a way for your request to be made manifest by your Faith.

"Worrying" not only does nothing to fix any crisis but leaves room for doubt, unbelief and fear exist alongside your faith and work against your complete trust in God.

So just try praying your needs (according to His word*) and leave it there with Him. There is nothing in the word of God that says, the more you pray or the harder your pray, the better your chances are of getting prayers answered. In fact, the word "chance" itself speaks of a hit and miss opportunity and that, my friend is not Faith.

Pray the scriptures for your needs and simply "Believe" and not doubt and watch the Lord's word manifest in your life.

------ Stand On The Word Of God ------