Will you allow Me to use the bad to make you good?

I often use that which looks bad, feels bad, is bad . . . to bring about or birth within you that which is very good. Will you trust Me? Will you give Me that much freedom within your earth-life? James 1:2 Consider it pure joy, my brothers, when you encounter trials of many kinds, 3 because you know that the testing of your faith develops perseverance. 4 Allow perseverance to finish its work, so that you may be mature and complete, not lacking anything.