Competition is great at sustaining innovation. Little improvements of products year after year, making them a little faster and a little cheaper with few less defects. Competition help keep prices down and quality up. And, most importantly, they detract monopolies.
This has nothing to do with disruptive innovation, the kind of innovation that changes markets all together.
True innovation and disruptive technologies are most of the time started with a person working alone in a garage with little money and a big dream to change things. Its main source of energy and drive is passion, having the guts to see this project through, knowing that it might not work.
Alexander Bell, Steve Jobs, Jeff Bezos all started in a garage. You and your ideas are good enough to start there too.