How can numerous and scattered missed prayers be made up while maintaining the performance of regular sunnah prayers and Tahajjud, especially during Ramadan?

Missed prayers must be made up. Giving precedence to making up missed prayers is more important than engaging in absolute supererogatory (nafl) prayers, as some scholars have even held that absolute supererogatory prayers are not valid for someone who has missed obligatory prayers, except for restricted supererogatory prayers like the regular sunnah prayers (rawātib) and Witr. The make-up is performed by determining the missed prayers and acting in a way that achieves certainty or a strong presumption of fulfilling one's obligation. If a specific prayer from a particular day is not known, then all prayers from that day must be made up. Making them up is more cautious, as it is the view of the majority of scholars, even though there is a difference of opinion regarding making up prayers intentionally missed.