Complex sentence: Juanita made a conscious decision to develop her on-stage persona, during 2008 and 2009, she became more confident, animated and outgoing in her interactions with the audience and in her choice of clothes and hairstyle.
Split into simpler sentences: Juanita made a conscious decision to develop her on-stage persona, during 2008 and 2009. She became more confident, animated and outgoing in her interactions with the audience and in her choice of clothes and hairstyle.