Thinking strong about....

Starting my own cake busniess from home i love baking i was a cake decorator at sams club for a while so i know how to be creative and write on cakes and do different boarders amd designs so i guess my question is where do i start how do i start what should i do im going to get most of my supplies thurday im going to make some christmas cakes take pictures and put them online try to build a profile so people can see my work im also going to do my brothers bday and my fiance i plan on making him a milwaukee bucks cake is that enough to show my talent and to want people to shop with me or is this a crazy idea?