What are the most prominent impediments to following the Sunnah of the Prophet (PBUH) and his guidance, and how can they be addressed?

There is no doubt that knowledge of the Prophet's (PBUH) merit, following him, and the virtues of righteous deeds has an impact on a servant's eagerness to adhere to the Sunnah (definition). You can refer to fatwas numbered: 65198, 32032, 68401, 72304, 58727.

It is also advisable to read books of encouragement such as: "Al-Matjar Ar-Rabih fi Thawab Al-Amal As-Salih" by Al-Dimyati, "Riyadh As-Salihin" by Al-Nawawi, "At-Targhib wa At-Tarhib" by Al-Mundhiri, and "Fada'il Al-A'mal" by Al-Maqdisi. In addition to books on Shamail (the Prophet's characteristics) and "Amal Al-Yawm wal-Laylah" by Ibn As-Sunni and An-Nasa'i to learn about the Sunan.