Are these acts of worship—along with reading half a juz' of the Qur'an daily—sufficient to reach the highest degrees of Paradise and remain therein with one's family?

The Prophet, peace and blessings be upon him, urged obedience to Allah and supplication to Him to attain Paradise, and informed that Firdaws is the highest and middle part of Paradise, above which is the Throne of the Most Merciful, and from which the rivers of Paradise flow. Supplication is an act of worship, Allah's grace is vast, and Allah has promised to answer those who supplicate to Him. It is part of Allah's grace that He will gather righteous servants and their offspring in Paradise. Entry into Paradise is not in exchange for deeds, rather deeds are a means to it, and the salvation of the servant is by the mercy and grace of Allah.