The Prophet ﷺ said:
"Indeed there is a Sūrah in the Qurʾān of thirty ʾāyāt, which intercedes for a man until he is forgiven. It is 'Tabārak Alladhī Biyadihi-l Mulk' [Sūrah al-Mulk]"
[Jamiʿ at-Tirmidhī 2891, Graded Hasan]
اللهم اكفني بحلالك عن حـرامك، وأغنني بفضلك عمن سواك
[Allāhummak-finī biḥalālika ʿan ḥarāmika, wa ʿaghninī bi faḍlika ʿamman siwāk]
O Allāh, suffice me with what You have allowed instead of what You have forbidden, and make me independent of all others besides You.
“Allahummaghfirli, warhamni, wahdini, wajburni, wa 'aafini, warzuqni, warfa'ni.” This means, “Oh Allah forgive me, have mercy on me, guide me, strengthen and enrich me (وَاجْبُرْنِي), grant me health and protection, provide me with sustenance, and raise my rank.” Ameen.
Simple words that are easy to recite daily.
Keep the remembrance of Allāh moist on your tongue.
سبحان الله
SubḥānAllāh
الحمد لله
Alḥamdulillāh
لا اله الا الله
Lā ʾilāha ʾillā llāh
الله اكبر
Allāhu Akbar
لا حول ولاقوة إلا بالله
Lā ḥawla wa-lā quwwata ʾillā bi-llāh