Complex sentence: Donna is transported back too far away to contact herself directly, instead she makes the decision to walk out in front of a truck and let it hit her, causing a traffic jam that will force her past self to turn left.
Split into simpler sentences: Donna is transported back too far away to contact herself directly. Instead she makes the decision to walk out in front of a truck and let it hit her, causing a traffic jam that will force her past self to turn left.