Nancy, your dreams are most interesting in that one of the outstanding and recurring themes involves celebrities. And in your first dream, you are "in someone else's body" which is what actors do. They attempt to "be" another person.
It seems that you are drawn to the many different celebrity personas for different reasons. And shopping for clothes is like choosing your identity. Being ashamed of what you bought seems to indicate that you're a little embarrassed by what you want in life so far. In some ways, you're going mainstream with the rest of the public (bus) as far as likes and dislikes but you are aware of the true value of such things, which is little compared to the actual cost.
There is a part of you that knows it doesn't take much money to develop a noteworthy and down-to-earth personality.