If, for example, I am an energy number 4 and use the south area of my house a lot... do I need to do both the general month time feng shui activations and those that are specific to my personal energy #? Or just the ones for my personal energy #?

Also...how many hexagrams is too many to have in a room or an area? I'm wondering if I should hang them in my house considering my business feng shui - to support myself in that area and hang them in my personal best directions for business feng shui as well as personal...is this too much?