Please make duah for my father.
Yasir Qadhi talks through Ayaats of the Quran which mention the highest place in Jannah (Paradise); the Ghuraf.
It is open to all, even if you have not prayed and lost your way, sincere repentance and a new life will start your journey.
The people of the highest level of jannah show good manners, Taqwa of Allah, they have a soft voice, they regularly pray the night prayer - Tahajjud, they give charity regularly, and they keep doing these actions until their passing.