What is the wisdom behind the delay in accepting Ka'b ibn Malik's repentance despite his truthfulness, and should I enroll in a college related to my sin if one of the conditions for repentance is to distance oneself from the causes of the sin?

Whoever is strong in his religion will be dealt with more severely than someone weak in religion, because his failure to participate in jihad is considered a breach of his pledge if he had given one. And if the Imam calls upon the army, it becomes obligatory for them to mobilize. Avoiding the causes of sin is essential for one who repents, so she must seek Allah's help and be diligent in adhering to the means of steadfastness in repentance, and try to enroll in another college. If she cannot find one, then she should enter this college while safeguarding herself from the causes of sin and associating with bad company, dedicating her time to revision and study, being keen on the companionship of committed believing women, preserving her prayers and remembrances, and frequently reading books of spiritual edification.