How can one compensate for good deeds missed in childhood, such as congregational prayers and the Night of Decree (Laylat al-Qadr), after having been guided and reached puberty by two years?

Praise be to Allah for guidance. One must strive in acts of obedience and worship for the remainder of their life. It is recommended to perform Hajj and Umrah (definition) and pray in the Sacred Mosque (Masjid al-Haram (definition)) as much as possible, especially during the last ten nights of Ramadan (definition), because prayer therein is equivalent to one hundred thousand prayers elsewhere. This includes both obligatory and supererogatory prayers.