Ask a master for help, calculate the date of birth of my family, the floor of the house, the orientation and other issues, urgent! (If you have any other related matters, please advise. )

Look at your age. You are a post-80s generation. The new generation has the brains of the old generation. How many floors a building lives on is a personal preference, regardless of the date of birth. If you have to make artificial contact, you are looking for someone to cheat you. Of course, the direction is south. Is there enough light?