People can manipulate things to an extent except when it comes to healing themselves.
“then I will give you the rain for your land in its season, the early rain and the latter rain, that you may gather in your grain, your new wine, and your oil.”
Deuteronomy 11:14 NKJV
Just like rain, trials stay until the purpose for which it was sent is accomplished.
“Blessed is the one who perseveres under trial because, having stood the test, that person will receive the crown of life that the Lord has promised to those who love him.”
James 1:12 NIV