Prophet (ﷺ) said, “Do you want to supplicate in most powerful way? Then say this:

اَللَّهُمَّ أَعِنِّيْ عَلَى ذِكْرِكَ وَشُكْرِكَ وَحُسْنِ عِبَادَتِكَ

Allaahumma 'a'innee 'alaa dhikrika, wa shukrika, wahusni 'ibaadatik

O Allah, help me to remember You, to give You thanks, and to perform Your worship in the best manner.

Reference: Sahih. Abu Dawud: 1522