Is the Prophet (Sallallahu Alayhi Wasallam) more superior than other Prophets

Q: Is the Prophet (Sallallahu Alayhi Wasallam) more superior than other Prophets? Is he leader of the Prophets? Is he better than others? If it is true please quote and explain.

Narrated by Abu Sa`id (Radiyallahu Anhu): The Prophet (Sallallahu Alayhi Wasallam) said, "Do not prefer some prophets to others."

حَدَّثَنَا أَبُو نُعَيْمٍ، حَدَّثَنَا سُفْيَانُ، عَنْ عَمْرِو بْنِ يَحْيَى، عَنْ أَبِيهِ، عَنْ أَبِي سَعِيدٍ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ ‏ "‏ لاَ تُخَيِّرُوا بَيْنَ الأَنْبِيَاءِ ‏"‏‏.‏

Narrated by Abu Huraira (Radiyallahu Anhu): The Prophet (Sallallahu Alayhi Wasallam) said, "He who says that I am better than Jonah bin Matta, tells a lie.'

حَدَّثَنِي إِبْرَاهِيمُ بْنُ الْمُنْذِرِ، حَدَّثَنَا مُحَمَّدُ بْنُ فُلَيْحٍ، قَالَ حَدَّثَنِي أَبِي، عَنْ هِلاَلِ بْنِ عَلِيٍّ، مِنْ بَنِي عَامِرِ بْنِ لُؤَىٍّ عَنْ عَطَاءِ بْنِ يَسَارٍ، عَنْ أَبِي هُرَيْرَةَ، رضى الله عنه عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ ‏ "‏ مَنْ قَالَ أَنَا خَيْرٌ مِنْ يُونُسَ بْنِ مَتَّى فَقَدْ كَذَبَ ‏"‏‏.‏

Making tawbah for cursing one's mother

Q: I am now 23 years old. When I was 11/12 years old - I did something very stupid as I had anger issues at the time. So back then, in a moment of anger I made dua to Allah that Allah sends my mother to jahannam forever in addition to adding that may Allah never accept a counter-dua (i.e. that Allah never accepts a dua that anyone makes to give my mother jannah). I regret this dua I made in anger and feel remorseful and shameful. Alhamdulillah my mother is alive and is a practicing Muslim to this day and has instilled in me strong Islamic principles through the permission of Allah. Since the time I was 11/12 I have by the grace of Allah Ta'ala also become a Hafiz e Quran. I still worry about that dua which I made more than 10 years ago. Should I stop worrying about this as Allah says: وَلاَ تَزِرُ وَازِرَةٌ وِزْرَ أُخْرَى And no bearer of burden will bear another’s burden (Quran 6: 164)