It is very much Palestinians that I meet regularly and Syrians at the masjid.
It seems the more pverty stricken area you come from the more firaun like you people become.
Arabs were very nationalistic in jahiliyah and you only seem to slowly going back to that.
No I am not racist you can go see my previous posts pre 2018 posts where I was soooo much in support of arabs before my eyes were opened.
Jews say same things mentioned in surah baqarah where they said jannah is for us because we are God's chosen. And right in those verses it is said that they will not be able to bear the fire even for that short time. As the jews also used to say the fire wont touch us except for a few days.
And also in the quran Allah says again and again about day of judgement no soul will be wronged and every soul will get what he has put forth. And that Allah will judge justly.
This can be found in various surahs.
This is rough translation I remember reading in different places. I dont have exact references at this time (check out Surah Israa it speaks about how every soul will bear it's own load on it's neck).
So all muslims entering jannah like you said is completely dependant on what you put forth for the next life. AND EVEN MORE it is based on the mercy of Allah bcuz it is said about many people that they will come with mountains of good deeds but they will be made habaam mansoora. Dust/ashes scattered about by the wind. It is also said by ulamah that the quality of the deed is more important than the quantity.
Shifaa that will be given to Prophet Muhammad alai salam is a different subject.
So dont be deluded sometimes Satan comes and whispers such things.
Keep working hard and remain in a state of taqwah and constant tawbah.
May Allah help us all we ourselves are not in any standing to be admitted into jannah. Sorry I got a bit sentimental.