How to use newly installed Password Manager on iOS

I have PM correctly installed, signed in & all set up, but I can’t get it to work. I go to sign into a website & Norton/my email appears & I click on it. Next, I hit the + sign in Norton Password Manager. Then, I click on the website & there’s no Password there. I click to generate new Password, but website doesn’t recognize new Password. I have Key Chain turned off. My old Keychain Password doesn’t work either. So, I click on Forgot Password. Website sends a link to create a new password. Norton/Email icon appears above keyboard & when I click on it, it correctly types my email address as my Username. However, when I click on Password, website won’t accept my old Keychain Password, so I don’t know what to put in Old Password box? This varies with the website. On some sites, I can list my old Password in the box with no problem. But, in either case, when I go down to click on New Password, Norton icon appears above iPhone keyboard, I click on it & it takes me to Norton Password Manager. Again, I get name of website, etc. There’s no Password in the box. I ask Norton to generate a strong Password & it does. I go down to the box to confirm new Password, I’ve had issues, but if I click on this box a few times, Norton correctly fills it in. But, the website will not accept any of this. I did everything correctly. So times when I click on the Confirm New Password box, Norton incorrectly takes me back & generates a New Password, which I don’t want. I simply need it to confirm the detailed Password it already generated as my New Password. I am extremely frustrated. I am go into to next try going back to Settings & click on both Norton & Keychain Password Manager. I’ve done this before. It will fill in Old Password. Then, I click on Norton to generate New Password, which it does. But, when I go down to complete Confirm New Password & click a few times, Norton either fills in the Password it generated, or gives me a new one, which I don’t want. What I’m saying is even when I am able to complete Old Password box, get Norton to generate a New Stronger Password & again confirm that Password, the website will not accept this & allow me to sign in. This is true pretty much across the board with most websites. I feel like I’m so close. But, my God, what a mess. Whoever created this software did not do it for folks who are not computer savvy. Does any have any suggestions? Otherwise, I’m stuck calling Norton Customer Service & being on the phone forever, which I’m trying to avoid. Thank you.