Complex sentence: Indigo then goes off with a group of teenagers and she begins to spiral out of control and smokes marijuana, and after sleeping on the sofa she got up and lost her footing causing her to fall through a glass coffee table and badly cuts her face.
Split into simpler sentences: Indigo then goes off with a group of teenagers and she begins to spiral out of control and smokes marijuana. Indigo wakes up and loses her footing, causing her to fall through a glass coffee table and badly cutting her face.