We see alot of great people in the world who became very successful in their various fields , we see alot of famous people who got game through what they engage in and are passionate about..
Let me give you an example , look at Lionel Messi and Cristiano Ronaldo, they are great footballers and they are famous among billions of people all over the world , there are billions of people that admire and love them and even wish to be famous and successful as them , if they were not passionate about the football career which they chose , they won't be where they are right now......so having passion about something really determines how far you will be able to succeed doing that thing or those things..
Look at Mark Zuckerberg and so many young CEOs that had passionate for tech , now they are billionaires who are living the kind of life that billions of people yearns for.. Their passion for their chosen field made them to be able to succeed in it and get alot of great success stories from it..
There are alot of examples that is out there that you can relate with , what most of them have in common is the "passion" for their career or chosen field..
If you do not have passion for that specific career or business or job you have chosen , it would make it very difficult to be able to succeed on it , so you need to focus on having the passion for it and whenever you realize you do not have any form of passion for it then maybe it is time for you to look within you and focus on that career or business or job that you have passion for and then stick to it...I wish you the best of luck.