If you visit your shop and don't see your products, here are the common reasons:
Products might be hidden
When you create a product, it's visible by default. But if you set any products to hidden, they won't appear on your shop page. Go to Dashboard → Products and check if your products are marked as visible.
No products added yet
If you're just starting out, you need to add at least one product before your shop shows anything. Go to Dashboard → Products and tap the + button to add your first product.
Checking from the right link
Make sure you're visiting the right link. Go to your Dashboard → Shop to see your actual shop URL and try opening it from there.