Methods for attaching a wearable neurostimulator to a user's head (or head and neck) using a cantilever electrode apparatuses for neuromodulation. In practice an electrode assembly may mate with the wearable neuromodulation devices so that the device is worn over one portion of the electrode assembly while the rest of the electrode assembly attaches to another portion of the body. The neuromodulator may be worn on a portion of the electrode assembly in a cantilevered manner (e.g., held at one end while the opposite end is free-floating), which allows the rigid neuromodulation device to conform to a variety of user head sizes and shapes.