Watching the breath during meditation is getting boring?

I am following meditations as taught by **Ajahn Brahm** in his book **Mindfulness, Bliss and Beyond.** I have almost reached to state of **Silent Present Moment Awareness.** The next stage is **Silent Present Moment Awareness of Breath**. Its been days I am watching the breath and its getting no where. I get bored watching the breath. The next stage is supposed to be **Awareness of Beautiful Breath.** Thats not happening and its getting boring, even the meditation. **What to do when breath watching gets boring?**