You should have a separate page on your website that is dedicated to your privacy policy, but you need to make it as easy as possible for your visitors to find it.
For example, you may want a link to your privacy policy from your website menu. You may also want to provide links to your privacy policy on your sign-up forms, at the bottom of most of your pages, and on the checkout page if you run an eCommerce business.
Plenty of privacy policy examples will give you ideas about where to display your privacy policy.