Yeah right, depends on path a person will take as you mentioned working on ourselves relied to how we take things if we choose trading we need to learned more about the field and to keep enhancing our knowledge to make sure that we will be able to find approriate ways to earn money, it's more on how we take care of our understanding and develop the rightful skills that fits to the venue we choose for our investment.
What difference does it make? Whether you are a trader or a business owner, you will have to work on yourself and grow your skills and knowledge about the field; it's not like a business owner doesn't need to do that. You have knowledge and skills in anything if you want to succeed, because you can only grow your business as the owner or your profits as a trader if you have vast knowledge about the field. If you want to compromise on what you are making, even if it's low, then you can continue like that, but if you don't want that, then you will have to work on yourself.
When a person wants growth in their life, in what they do, either to make a living or as a hobby, they will need to work on improving their skills, and bring growth in their personality, and then they will see changes in their life. Some people just stay the way they are, keep doing things in the same way without innovating or trying something new, and then they complain that there is no growth and their business or investments aren't working out. Adapt and change, and then you will see the changes. Nothing happens on its own.