Becoming an entrepreneur sometimes comes out of necessity, but mostly, it's chosen. You have to want to be one. It's not an easy life. Many would argue it's more difficult to be an entrepreneur than an 8-to-5er. I'd agree; it's easier to punch a timecard. It's more stable to punch a timecard. You know where your next paycheck is coming from.
When you're an entrepreneur, many times not only do you have to do the actual work, but first have to find the work, negotiate a price, and acquire the right tools before you can even begin working. Then, when the work is done, you still have to collect payment, and if you care, follow up.
Desire, decide, then do. In other words, you have to want to be willing to work.
Deciding that you want to go on this journey can be a difficult decision when there are so many uncertainties and unknowns. But, if the desire is there, you'll figure it out. Your desire to call your own shots will make you research and learn about the journey ahead.
You will find that doing, execution, is the most important part. Even doing the wrong thing is better than not doing anything at all. At least you're getting data to act on. You should strive to fail fast and often. You don't want to be working on something too long before discovering it's not going to work.