In recent time (maybe from May) new Youtubers could not complete all monetization process. Everyone gets stuck in process one. After clicking on the Start button on step 1 and then accept all condition and click on next it seems like nothing happen. Here is the screenshot which I took from the Youtube forum.
Well Due to Technical issue People having Problem of this. A Youtube Forum Community manager confirm this message. Here is the screenshot of this.
Hope this bug will take care soon. So don't be panic. It will be ok very soon. Below I added the forum post link where you will find the more details about this problem.