What should I do if the door to the opposite door is larger than my door? Does it affect my home from the perspective of Feng Shui? Please kindly give me some advice!! Thank you

I don’t know whether the Feng Shui of your home is good or not. I can tell you for sure that the door of the house opposite will have no impact on your home. Even if the door of the house opposite is big or small, it will not affect your home. Whether Feng Shui is good or not depends on this. It depends on your apartment type, floor, surrounding environment, indoor furnishings, etc.