You are adding records to your domain in a different Cloudflare account from where your domain is currently active - the zone you are in has a status of “Finish setup” instead of “Active”.
You either need to…
locate the account where the domain is currently active and make your DNS changes there
…or…
make the zone active in the account you are currently in by selecting a plan and changing the nameservers at the registrar to the 2 Cloudflare ones given on your domain overview page.