Connie, dreaming about our jobs or our workday is pretty common. We find a lot of solutions during our dream state where we can play around with all possibilities.
In Jeanne's case, when she dreams about college, this symbol is more a life metaphor. For years, I dreamed about going to school. In one recurring dream, I was not going to pass high school because I skipped social studies. The counselor gave me a chance to "make up" this course during summer so I could graduate.
In real life, I never had academic problems in school. This was not a literal dream message. HOWEVER, in my waking life at the time, I was withdrawing from socializing with friends and other social groups. I wanted to cocoon and be a hermit when I knew that in order to fulfill one of my life purpose's I had to be among people. The dream was telling me that I would not advance spiritually--that I would not graduate to the next level--until I learned my social studies (became more social).
In later dreams, I was late to college classes. Running up the stairs, but late.
Similarly, Jeanne, your college dreams tell you that you might not "get" or "pass" your higher life lessons because you are too tired (from distracting activities) and aren't attending your life classes!
You didn't ask but here is some unsolicited advice or what I call Dream Therapy: Reflect on your current life and see what is tiring you out so much. Be sure that your best energy is spent on more spiritual matters rather than physical activities. This doesn't mean you have to switch careers or anything drastic. Just be sure to work in some meditation, reading, gentle exercise, journaling or attending groups that encourage higher thoughts, deep introspection and soul growth. Rest. Be still. You are still "doing something" when you are at rest.
Whatever career or job you may have, be sure to apply all of the wisdom you have gained thusfar in life.
We misunderstand sometimes and think that a spiritual person only thinks about spiritual matters. But a spiritual life is also a physical life here on earth. We are to learn in spirit but apply in the physical.
You are a wise woman. Just apply what you have learned so far and be open to learning more.
Keep dreaming and your dreams will lead you to the next step.
Life is a school.