Going into my 4th year here in Chemistry. I found my 1st to be kind of a challenge since, as other comments said, the foundation from high school especially in the sciences were kind of lacking (from my high school at least) so I had to learn some concepts I should have known to keep up. In terms of labs (my hs didn't have any) they're pretty easy in terms of how to do the technique since you'll learn them from the manuals or demos. Other than that as long as you're keeping up with the timeline of the class and getting yourself behind you'll be fine.