In the name of Allah, the Most Beneficent, the Most Merciful

Allah said:

إِنَّ اللَّهَ لَا يُغَيِّرُ مَا بِقَوْمٍ حَتَّىٰ يُغَيِّرُوا مَا بِأَنفُسِهِمْ

Verily, Allah will not change the condition of a people until they change what is in themselves.

Surah Ar-Ra’d 13:11

And Allah said:

وَلَا تَكُونُوا كَالَّتِي نَقَضَتْ غَزْلَهَا مِن بَعْدِ قُوَّةٍ أَنكَاثًا

Do not be like she who untwisted her spun thread after it was strong.

Surah An-Nahl 16:92

And Allah said:

وَلَا يَكُونُوا كَالَّذِينَ أُوتُوا الْكِتَابَ مِن قَبْلُ فَطَالَ عَلَيْهِمُ الْأَمَدُ فَقَسَتْ قُلُوبُهُمْ وَكَثِيرٌ مِّنْهُمْ فَاسِقُونَ

Let them not be like those who were given the Scripture before, and a long period passed over them, so their hearts hardened and many of them were defiantly disobedient.

Surah Al-Hadeed 57:16

And Allah said:

فَمَا رَعَوْهَا حَقَّ رِعَايَتِهَا فَآتَيْنَا الَّذِينَ آمَنُوا مِنْهُمْ أَجْرَهُمْ وَكَثِيرٌ مِّنْهُمْ فَاسِقُونَ

But they did not observe it with due observance, so We gave the ones who believed among them their reward, but many of them were defiantly disobedient.

Surah Al-Hadeed 57:27

Abdullah ibn Amr, RadhiAllahu Anhu, reported: The Messenger of Allah, SallAllahu Alayhi Wa Sallam, said to me:

يَا عَبْدَ اللَّهِ لَا تَكُنْ مِثْلَ فُلَانٍ كَانَ يَقُومُ اللَّيْلَ فَتَرَكَ قِيَامَ اللَّيْلِ

O Abdullah, do not be like a man who would stand for prayer at night but later abandoned the night prayer.

Source: Sahih Bukhari 1101, Grade: Sahih

Aisha, RadhiAllahu Anha, reported: The Messenger of Allah, SallAllahu Alayhi Wa Sallam, said:

سَدِّدُوا وَقَارِبُوا وَاعْلَمُوا أَنْ لَنْ يُدْخِلَ أَحَدَكُمْ عَمَلُهُ الْجَنَّةَ وَأَنَّ أَحَبَّ الْأَعْمَالِ إِلَى اللَّهِ أَدْوَمُهَا وَإِنْ قَلَّ

Do good deeds properly and sincerely, and know that your deeds will not make you enter Paradise, and that the most beloved deed to Allah is one performed regularly even if it were small.

Source: Sahih Bukhari 6099, Grade: Sahih

In another narration, the Prophet, SallAllahu Alayhi Wa Sallam, said:

وَكَانَ أَحَبَّ الدِّينِ إِلَيْهِ مَا دَاوَمَ عَلَيْهِ صَاحِبُهُ

The most beloved religion to Allah is one which is performed regularly.

Source: Sahih Muslim 786, Grade: Sahih

Success comes from Allah, and Allah knows best.