You should build a landing page for your idea and start testing. Spend your money to find a legit copywriter, have him write out the copy to communicate your business value prop ( clearly). You need a logo. Design, Dev, CMS ( wordpress) for payment processor use STRIPE. Make sure your site is stupid fast and keep it simple with a focus on clarity. Next, you need to start testing, testing , testing and then iterating weekly or monthly until you start making money. Try to make money from the jump.