What is the age of puberty from which the questioner should start making up the days she did not fast, taking into account that she practiced masturbation at the age of 11, pubic hair appeared at the age of 13, and she believed that puberty only occurs with menstruation?

If you are in doubt about the time of puberty, it is added to the earliest probable time, and the default is that semen has not been emitted when in doubt. Puberty is not determined from the time of masturbation, but from the time pubic hair appears. If you are in doubt about the time of puberty, you must make up for the obligatory duties that you are certain were incumbent upon you. For one afflicted with waswasa (obsessive whispering), it is permissible to act upon the opinion of some scholars who say that whoever abandons prayer out of ignorance of its obligation upon him, or neglects some of its conditions and pillars, is not required to make it up.