It is not easy to let our ego/pride go. As what Rick Rigsby in his moving talk “Egotism is the anesthetic that dulls the pain of stupidity“. Don’t be stupid to let our ego control our lives. In Islam, pride or arrogance is considered as one of the biggest sins. This can be referred to various verses in Al-Quran
In Surah az-Zumar (Verse 60)
وَيَوْمَ ٱلْقِيَٰمَةِ تَرَى ٱلَّذِينَ كَذَبُوا۟ عَلَى ٱللَّهِ وُجُوهُهُم مُّسْوَدَّةٌ ۚ أَلَيْسَ فِى جَهَنَّمَ مَثْوًى لِّلْمُتَكَبِّرِي ﴿٦٠ ﴾
“Is there not in Hell an abode for the proud?” (Surah az-Zumar 39:60)
In another verse from the same surah,
قِيلَ ٱدْخُلُوٓا۟ أَبْوَٰبَ جَهَنَّمَ خَٰلِدِينَ فِيهَا ۖ فَبِئْسَ مَثْوَى ٱلْمُتَكَبِّرِينَ
“It shall be said: Enter the gates of hell to abide therein; so evil is the abode of the proud.” (Surah az-Zumar 39:72)
In Surah Ghafīr (Verse 35) Allah Almighty remarks,
الَّذِينَ يُجَادِلُونَ فِي آيَاتِ اللَّهِ بِغَيْرِ سُلْطَانٍ أَتَاهُمْ كَبُرَ مَقْتًا عِندَ اللَّهِ وَعِندَ الَّذِينَ آمَنُوا كَذَٰلِكَ يَطْبَعُ اللَّهُ عَلَىٰ كُلِّ قَلْبِ مُتَكَبِّرٍ جَبَّارٍ
“Thus does Allah set a seal over the heart of every proud, haughty one.” (Surah Ghafīr 40: 35)
In another surah, Surah Al-Baqarah: 34, due to arrogance, Iblis was regarded as the accursed one.
وَإِذْ قُلْنَا لِلْمَلَٰٓئِكَةِ ٱسْجُدُوا۟ لِءَادَمَ فَسَجَدُوٓا۟ إِلَّآ إِبْلِيسَ أَبَىٰ وَٱسْتَكْبَرَ وَكَانَ مِنَ ٱلْكَٰفِرِينَ
May Allah safeguard us from the feeling of arrogance and prideful.