Is vowing not to marry until memorizing the Qur’an, while facing other difficult life circumstances, a punishment for not fulfilling it, a trial from Allah, or a curse that follows its owner?

In summary, the vow of persistence and anger (which is made with the intention of compelling oneself to do or refrain from something) gives its maker a choice between fulfilling it or offering an expiation for an oath (feeding or clothing ten needy persons, or fasting three days if unable to find them). This concludes the vow and allows her to marry whenever she wishes. You should also know that provision is decreed, and everything that befalls a person is predestined before their creation, and that impatience does not alter what is decreed. Furthermore, obedience and piety are a cause for provision and a good life, along with frequent supplication.