Should I make up that day of fasting after I had suhoor, thinking that the fajr azan had not been called, knowing that my mother woke me up for suhoor and knew that the azan had already been called?

The questioner must make up for the day she ate suhoor (definition) after the Fajr adhan (definition), because whoever eats or drinks, mistakenly thinking it is not yet dawn, must make up for that day and abstain from eating for the rest of it out of respect for the month. Her mother erred by intentionally spoiling her fast, and she must repent, because fasting is an obligation that should not be trifled with, and missing suhoor is not an excuse to break the fast for someone who is not ill.