Is it permissible to supplicate using poetry, such as: "My God, do not torment me, for I acknowledge what has been from me"?

This verse belongs to Abu al-Atahiya, and it was the last poetry he recited during the illness from which he died. There is no harm in supplicating with this poetry or any other, as it is among the best ways to draw closer to Allah, especially if it involves seeking forgiveness and asking for safety from punishment. The Prophet, peace and blessings be upon him, encouraged seeking Paradise from Allah and seeking refuge from the punishment of Hellfire and the grave, and from the trials of life and death, and from the trial of the Antichrist (Al-Masih Ad-Dajjal). It is commendable to confess one's mistakes and slips before Allah, just as Adam and Eve did, and just as the Prophet, peace and blessings be upon him, taught Abu Bakr As-Siddiq the supplication: "O Allah, I have wronged myself greatly," and as found in the supplication of Sayyid al-Istighfar (the master of seeking forgiveness). The poetry of the Companions and the Salaf (pious predecessors) contained a great deal of supplication and humble entreaty.