It starts with a Plan. Without that you can't even start. Be Throrough in doing your homework and laying a good foundation for what you propose to do. Once that in place properly, it will give you Belief. That in turn will fill you with both Passion and Motivation.
After that the road ahead is now before you. However, that doesn't mean you have succeeded yet. Far from it. It's important to keep an Open Mind to modify your plan if necessary. Consult others who know the subject and can offer practical advice. To do that requires one always remain Humble, not being too proud to ask others.
If results don't come as quickly as you would like, that doesn't mean you are wasting your time. Patience is an important attribute to keep one trying. Determination is critical at times like this to stick to your path. However, there may come a point when the cost is too much and success just isn't happening. Stubbornness isn't a good quality at this juncture.
However, rather than give in and go sulk in the corner, a dose of Resilience will help you pick yourself up and move forward in another direction. Learn from the past and apply what you have learned to the future.
Oh, another point. Success isn't about money. It's about achieving what's truly important. Is a 'successful' businessman really a success if his marriage is unhappy or fails? That his children grow up missing a caring, involved dad? Success required the right Values too.