It's not much use for you to apply for a patent for appearance. It has been two years since you applied for a patent for utility model. Don't think about the fake, you can only sign a confidentiality agreement with your processing factory to ensure that the processing factory does not leak. A batch of products are sold to make money, and then sold at low profit. Make competitors feel unprofitable. This is how Intel competes with AMD. Of course, you can also apply for a patent while producing. This is called a protective patent, which prevents others from seizing the patent and then suing you so that you can't sell it.
Also, when you start to produce this product, you should pay attention to keeping the evidence (such as formal invoice and mold opening contract). Prove that your product was produced earlier than others, which can prove that others are squatting on your patent.