Building a house feng shui problem?

There are many problems that affect feng shui. The first year was 20 12. The bad star was in the north and your gate was in the north, so accidents often happened. The second is that the land where you build a house may disturb the spiritual world with unclean things underground. Or choose an unlucky day to build a house. The third is which house of your south gate or north gate will break the money. The fourth is that facing a ginkgo tree in front of your south gate is a top evil, of course it is not good for your health. There are other surrounding environments that are not clear, so it is better to draw a picture.