Tip #2: Consistency Helps Memorization
Angel Jibril (AS) would only bring revelation whenever Allah (ta’ala) decreed, but every time he came, he would make sure that he taught the Prophet (SAW) till he understood and memorized it.
Why didn’t the Prophet have difficulty remembering Angel Jibril’s (AS) teachings? Well, apart from the obvious fact that he was a Prophet of Allah (ta’ala) free from mistakes, the Prophet (SAW) would recite these verses even when Jibril was not there.
The Prophet (SAW) would teach these verses to his Companions and he spent his days and night in prayer, reciting the Quran.