It's often one of the first barre chords that a beginner is introduced to, and it can be difficult to play at first. But relax (literally) and keep working at it because it opens up other chords to you that use the same shape but just played further up the fretboard.
Also, don't forget to check out the tutorials on Barre Chords (also known as moveable chords) that you'll find on our Tips & Help page as well.