What happens next?

How to skip trowel texture
Protect yourself.
This will be a messy project, so prepare to get dirty. Wear old " work clothes " that you won't mind messing up and avoid wearing any fine jewelry.
It can also be a good idea to wear safety goggles, especially as you prepare the wall and joint compound. Dust and other small particles can easily break away and may cause irritation if they get into your eyes.