Q: Safari annoying me so much.

Adware may be  installed on your Mac. Remove Adware.

1. Use  Malwarebytes Anti-Malware for Mac to remove adware.

     https://www.malwarebytes.org/antimalware/mac/

   Download, install , open,  and run it by clicking “Scan for Adware” button   to remove adware.

   Once done, quit Malwarebytes Anti-Malware.

2. Disable Extensions and test.

   Safari > Preferences > Extensions

   Select and disable all extensions and test.

   Enable Extensions one by one and test.

   To uninstall any extension, select it and click the “Uninstall” button.

3. Safari > Preferences > Search > Search engine:

     Select your preferred search engine

4.  Visit the site you want it to be the Home page

     Safari > Preferences > General >  Homepage

     Click the button “Set to Current Page” button.

Safari – Popup takes over

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Popup remover – Scam Zapper