after my dreaming 和after my dream 有何区别?

after my dreaming 通常是指发呆,发白日梦
例如：After my dreaming of becoming a superstar,I continued to find a more practical job [我发完白日梦后,便继续找一份更实际的工作.]
after my dream的dream是指真正的梦想,不是发白日梦的那种
例如：I have been chasing after my dream[我一直在追逐我的梦想.