In short, if you have to ask how you can become Steve Jobs, you can never become Steve Jobs. Start with simple apps and device hacks to work your way up. If you are lucky and are really committed, maybe you can really leave a mark.
It took more than 3 decades even for Jobs to be truly recognized as an icon. Meanwhile he slaved hard, had a temporary rise to the peak, thrown from his perch, ridiculed, worked his way back and proved himself all over again with incredible products. Now, you want to jump to the 20th step directly without having any past of crossing even 1 step?
There is a top-secret recipe for success. Keep this secret mantra: