How to add custom font?

If you’d like to use other font than Google Font you can upload your own. Use this plugin https://wordpress.org/plugins/custom-fonts/
and then add this code in Customize → Additional CSS:

body,p,a,h1,h2,h3,h4,h5,h6 { font-family: "Your Font" !important!; }

Don’t forget to replace “Your Font” with font name you want to use.