You can keep reading up on the how and why, but doing so won't get your project moving forward. So let's get started - you can setup a 30 minute consultation with me at no cost, and we can discuss your needs to see if Shopify is right for you.
The worst I can say is you're an idiot, get out of my office, but that's very improbable. Most likely, you're on the right track already and just need a little advice to find the next right step.