Please explain these lines from " The cutting of my long hair"

1. "the constant clash of harsh noises.......i was securely tied." (para 1) please tell me why she says that she was 'securely tied' within the bedlam?

2.While we marched in, the boys entered an opposite door. i watched for the three young braves who came in our party. i spied them in the rear ranks, looking as comfortable as i felt. please explain...

thanks...

The explanation of the lines is as follows:

1. Zitkala-Sa was chafed with the noises of ringing bell, clattering shoes and ceaseless murmuring (in English) early in the morning. She felt uncomfortable in this chaos and wanted to break free and return back home. However, realising that there was no way out of this pandemonium, she exclaims that she was 'securely tied'.

2. In the boarding school, the students were supposed to march to the dining hall for breakfast. Feeling uneasy, adjusting in the tough disciplinarian environment, Zitkala-Sa's eyes searched for the three boys who had joined the school with her. This, she terms as spying. These boys were in the rear (end) of the queue and seemed as awkward as she had been feeling.