Must I make up 1300 missed prayers due to unknowingly omitting a limb during Ghusl, knowing that I am about to start my General Secondary Education year, which requires a great deal of effort?

Scholars have differed regarding making up prayers for one who omitted a condition out of ignorance. It is permissible to adopt the opinion that does not necessitate making up the prayer, as it is a strong one. However, according to the view that necessitates making it up, it is only required to the extent that it does not harm the body or livelihood. It is permissible to delay it or delay part of it if there is harm.