In order to succeed big time, you must have passion. If the passion is lacking, everything will seem like an annoying task. Think about a woman or a man you're passionate about - you want to invest your time and energy on that person. Same thing with business. You can make a business out of ANYTHING you love!! Some of the things you love will be more profitable than the others. For start, choose the things you're the MOST passionate about and after you get to see results, than you can go to the next niche, this time, a more profitable one.