What kept Andy from jumping off of the overpass?

Andy was held back from jumping off the overpass by a combination of inner turmoil and a moment of clarity. As he stood on the edge, he was flooded with memories of loved ones and moments of happiness that made him reconsider his decision. Additionally, the presence of a passerby or an unexpected event could have provided a lifeline, reminding him that there are people who care and that help is available. Ultimately, it was a mix of hope and the realization that his life still held potential that kept him from taking that final step.