Recurring dreams about being back in university, especially those involving stress and anxiety over forgotten classes and failing grades, often relate to feelings of inadequacy, pressure, or unresolved issues in your waking life. Here are some insights into what your dream might mean:

1. Fear of Failure: The dream may reflect underlying anxieties about your performance, whether in your career or personal life. Even if you've graduated, you might still feel pressure to succeed or fear that you're not meeting expectations.
2. Unfinished Business: This dream could symbolize feelings of having unresolved issues or goals that you haven't addressed since your university days. It might be prompting you to reflect on any areas in your life that feel incomplete or neglected.
3. Change and Transition: Since you’ve moved on from university, this dream could indicate a struggle with change or adapting to new roles and responsibilities. You might be feeling overwhelmed with new challenges and uncertain about your capabilities.
4. Self-Reflection: The repetition of this dream could be your mind's way of encouraging you to take a closer look at your current commitments and whether you're fully engaged in them. It might be a sign to assess where you might be spreading yourself too thin.
5. Nostalgia and Growth: Sometimes, these dreams can evoke nostalgia for a time in your life when things were more structured. They might also represent a longing for personal growth and learning, indicating that you should seek new experiences or education.

To address these feelings, consider reflecting on your current life situation. Are there areas where you feel unprepared or anxious? It may be helpful to take steps toward managing your stress, whether through organization, seeking support, or setting realistic goals for yourself.