Well, you can always start on something you love most? In that way you are assured that it will last longer since you put your mind and heart into it. Turning your passion into profit is worth trying. Then, next would be to create your own brand, which will help you draw more customers and sales.
I have to admit Branding is everything in business, in order to start a good and profitable business you need to create your own unique and creative brand or identity. The brand that you will create will boost your online and offline presence, when that happens more sales will be coming in to your business.
I've known this site brandmelive.com that helps and guides an individual or start-up company on how to create your own unique brand that stands out from the rest, amidst this global crisis. In less than a month, I assure you, you will start to experience great amount of success on your brand or business with the efforts you put in. Believe me, I'm one of the million that benefited from that site.
Hope that helps in some way.