What is the advice of His Eminence (may Allah prolong his life) to me noting that I did not have any hope and…

Answer

In the name of Allah, be informed, my son, that one of the attributes and signs of the believer is remorse for the sin. Moreover, the believer does not forget the sin that he did and if he did, he would have returned to the sin. Despair from the mercy of Allah, glory be to Him, is a great sin, so you, my son, must strive to create love for Allah Almighty in yourself by remembering His blessings on you, the most prominent of which are the blessing of existence and creation for you, then the continuation of life, and the other blessings that are innumerable. If you tame yourself to remember His blessings, Allah will help you create love for Him in yourself, then that love helps you quit the sins and to submit to Allah, glory be to Him, and be grateful to Him. Treat yourself by staying away from the atmosphere that makes it easier for you or your desire for the sin that you want to get rid of and its consequences, and stick to the night prayer. If possible for you, it is better do that in a dark room with being alone so that Allah will bless you; the pleasure of being alone with the beloved, Whom there is no more honor to be with other than Him Who is Allah, glory be to Him. Allah is the Guide.