Which Tehillim (Psalms) should one say if they want success in their Torah learning?

Chapter 119 (תְּהִלִּים ק’ט) stands as the most extensive section within the entire sefer. It is distinguished by its alphabetical structure, containing 8 pesukim dedicated to each letter of the alphabet. The overarching theme of this chapter remains faithful to its initial verse, emphasizing the universal aspiration for individuals to embrace a Torah-centered existence, irrespective of the time, place, or situation.

This chapter contains 176 verses and can be referenced here. תְּהִלִּים ק’ט