Complex sentence: She relinquished the name of her mother and instead called herself "Si Mahmoud Saadi", and now only wore male attire, which she had previously only done off and on, and assumed a male personality and spoke and wrote as if she were a man.
Split into simpler sentences: She relinquished the name of her mother and instead called herself Si Mahmoud Saadi. She began to only wear male attire, which she had previously only done off and on, and assumed a male personality and spoke and wrote as if she were a man.