Is AP American Gov't class difficult?

I understand that it will be rigorous, but what can I expect?
I passed my Gov’t course with the top grade in the class, 104%. Should it be smooth sailing? What does the class cover? It will be my first AP class I’ve taken, so I’m a little nervous. Thanks for reading!</p>

I’m taking it this year, from what I know it’s self studyable or atleast people here claim it is… Us history helps if u have taken apush and rea crash course for govt is praised as best prep book on this site, it’s cheap get one</p>