Sorry for the misunderstanding.
CJR is providing you a solution to suit the YoloV5 from https://github.com/wang-xinyu/tensorrtx in this stream, and you can continue to follow this stream.
However, I can give you my suggestions which follows a different workflow:
Pytorch → ONNX → TRT
And conversion to ONNX first is a more standardized way to handle YoloV5 from the official page: https://github.com/ultralytics/yolov5.
You can choose either way to solve your problem and I hope they do not clash with each other.