dictionary.com said:verb (used without object)
1. to go up and down like a roller coaster; rise and fall.
2. to experience a period of prosperity, happiness, security, or the like, followed by a contrasting period of economic depression, despair, or the like.
adjective
3. of, relating to, or characteristic of a roller coaster.
4. resembling the progress of a ride on a roller coaster in sudden extreme changeableness.
I'm not asking what is the correct way to write it, but your preferred way, or the way you think looks better