 you're choosing the niche for you to build your brand in and make your impact in, my advice would be to look at the experience that you already have and look at the things out of all that experience that you absolutely love doing, think about the person or the people that you loved doing it with and consider what you can be the very best demonstration and the embodiment of success in that particular area and that's what I would be using to focus on my niche because that way you can live, breathe, eat, sleep, walk and talk it with your eyes blindfolded and your hands tied behind your back, you haven't got to learn anything new, you haven't got to master anything new, if you've created success and results in an area then you've already got credibility in it, you can use what you've created to build your success to teach others and that will build a phenomenal brand