Sydney, dreaming about having a bunch of late library books is quite telling. Books are often symbolic of knowledge, wisdom, and past experiences. The fact that these books are overdue may indicate a feeling of being behind or overwhelmed by responsibilities or expectations. This could be reflective of your frequent stress and anxiety, suggesting a sense of pressure to meet certain standards or fulfill obligations that you feel you are lagging behind on.
Moreover, the library setting is significant. Libraries are structured and organized environments, symbolizing order and control. Your dream might be revealing a desire to bring more structure and order into your life, especially in light of your ongoing struggles with mental health issues such as PTSD, anxiety, depression, and bipolar disorder. The overdue books might also represent unresolved issues from your past, perhaps related to your traumatic experiences or relationship difficulties, that are still exerting pressure on you.
The feeling of lateness in your dream could also be a manifestation of your financial stress or other life-changing events that you've experienced. It might be an indication that you feel time is slipping away or that you are not progressing as you'd like in certain areas of your life. This resonates with the recurring feelings of sadness and the lack of joyful activities in your waking life.
Additionally, this dream can be linked to your occasional difficulty in falling asleep and waking up feeling unrefreshed.