The phrase "out of control" means that something is not being controlled or managed effectively, often resulting in unpredictable and potentially dangerous consequences. Full definition
In stressful times, most people either let negative feelings spiral out of control or push them under the rug, but neither method works. (entrepreneur.com)
• You sometimes feel out of control with regards to how much you eat. (boulderpsych.com)
You do not have to wait for debt to get completely out of control before you get help. (drakeozment.com)