I was recently encouraged by this excerpt from C.H. Spurgeon in "Beside Still Waters":
I believe that God, who has appointed it, has also measured your trouble, set its bounds, and will bring it to an end. His gracious design is in all your difficulties. Do not think that God deals roughly with His children and gives them needless pain. "He does not afflict willingly, nor grieve the children of men" (Lam. 3:33). "He has torn, but He will heal" (Hosea 6:1).
Has not God helped you out of one trouble after another? Do you suppose that He will leave you in this trouble? "He shall deliver you in six troubles, yes, in seven no evil shall touch you" (Job 5:19).
This particular water, in which you are now struggling, is intended and included in this promise, "When you pass through the waters, I will be with you; and through the rivers, they shall not overflow you" (Is. 43:2).
It is, I must confess, sometimes difficult to apply the promises to a particular case. Sometimes unbelief fights hard. But remember, unless the promise is applied it is like medicine that is not taken. It may be powerful, but it is worthless unless applied.
Ask for grace, that you may believe while you are still under the cloud. Regardless of how dark the cloud, it contains blessings. "If the clouds are full of rain, they empty themselves upon the earth" (Eccl. 11:3).