Welcome to my life would introduce to the viewers the aching of stress and discomfort which is could similarly connect to the novel. The song develops the main idea of being stressful and internally hurt, but not showing it publicly. For example, their feelings may be torn apart and heavy stress may be upon whomever. Although Hannah does not show this until the tapes, she hid it inside for a long period of time which she states in her tapes. The most demonstrative example is when she talks about peeping Tom which made her very worried and full of discomfort. The lyrics and meaning of this song would surpass as a beginning song.
All by Myself (Ending)
All by Myself could propose to the viewers the feeling of desperation