How do we reconcile God's justice and wisdom with the tribulation of a committed young woman who experienced divorce due to her ex-husband's sin, while he is progressing in his life and she feels stuck and unsuccessful despite her commitment and obedience?

You must continue to supplicate, for Allah has promised to answer. Do not let what you are experiencing be a measure of Allah's justice and wisdom, for He gives and withholds out of wisdom. Your delayed marriage does not mean that you are bad; perhaps the withholding is a blessing and the trial a mercy. Allah decrees nothing but good for the believer, for you may dislike a thing, and it is good for you. If Allah bestows worldly things upon a disobedient person, that is a gradual enticement from Allah, and then punishment comes to him suddenly. It is permissible for you to seek help from trustworthy and righteous people to find a husband, and it is even permissible for you to offer yourself to someone you desire.