Is it permissible to resort to sorcerers to undo the spell of delayed marriage, especially after repeated rejections from girls despite adhering to ruqyah and adhkar, and in light of the fear of falling into sins and losing hope?

Piety, patience, and abundant supplication are recommended. If the described situation is likely to be caused by magic (sihr), the evil eye (ayn), or jinn possession (mass), then Ruqyah ash-Shar'iyyah (Islamic exorcism) is the best means of treatment, alongside seeking help from lawful reciters (ruqat shar'iyyin), reciting Surat Al-Baqarah, maintaining regular remembrance (adhkar), observing obligatory duties (fara'id), and avoiding sins. It is not permissible to undo magic with similar magic, and one must not contemplate suicide.