"When you are conscious that you are growing anxious, commend yourself to God, and resolve steadfastly not to take any steps whatever to obtain the result you desire, until your disturbed state of mind is altogether quieted unless indeed it should be necessary to do something without delay." Source: St. Francis de Sales, Introduction [...]
"If anyone strives to be delivered from his troubles out of love of God, he will strive patiently, gently, humbly, and calmly, looking for deliverance rather to God’s Goodness and Providence than to his own industry or efforts; but if self-love is the prevailing object he will grow hot and eager in seeking relief, as [...]
“Know that the greatest obstacles to holiness are discouragement and an exaggerated anxiety. These will deprive you of the ability to practice virtue." Source: St. Faustina, Diary: Divine Mercy in My Soul