Is it better to stop memorizing the Qur’an due to being afflicted with masturbation?

What you are afflicted with harms your religion, health, mind, academic future, and sexuality. You must get rid of it by seeking help from Allah and employing lawful means. This is not an excuse to abandon memorizing the Quran; this is one of Satan's ways to discourage you from good deeds. Continue memorizing the Quran, for it is a healing, and it contains what suppresses satanic whims and encourages good qualities.