If someone was going to spend all night in worship, hoping to obtain Laylatul Qadr, what should he do? Like should he spend all of it praying, or some of it praying, some istighfar, some duas, etc. What is the prescribed "division" for this?
The goal of this night is istighfar and Tribute that ("Angels and al-Rooh descend to earth"). so all of Angels Pray for everybody that who worship and ask for forgiveness from Allah.
This will bring you closer with Allah.
and As well as reciting the Holy Quran.