Dua to be helped in remembering Allah

اللَّهُمَّ أَعِنِّي عَلَى ذِكْرِكَ وَشُكْرِكَ وَحُسْنِ عِبَادَتِكَ

Allahumma a'inni 'ala dhikrika wa shukrika wa husni 'ibadatik

“O Allah, help me to remember You, to thank You, and to worship You in the best manner.”

— Sunan Abi Dawud 1522 (sahih) — the Prophet ﷺ told Mu‘adh: "By Allah, I love you; never leave this after every prayer."