If OP believes in the idea, has domain expertise in it, and has some validation, why not pursue it? Everything comes with risk. The alternative is waiting year

If OP believes in the idea, has domain expertise in it, and has some validation, why not pursue it? Everything comes with risk. The alternative is waiting years, potentially NEVER to find a perfect, 100% risk-less (which doesn't exist, btw) startup idea that will help him become very rich.