If your domain is pointing to Cloudflare, you can access your DNS Zone from your DNS tab:
You can find detailed tutorials on creating, editing, and deleting DNS records at Cloudflare here: Managing DNS records in Cloudflare.
Hostinger default DNS records:
If you see that “Partner hosted zone”, you can manage DNS Zone at Hostinger’s DNS Zone Editor:
If you face any difficulties while managing DNS Zone at your domain provider, it’s best to contact Cloudflare directly. Alternatively, you can transfer your domain to Hostinger so your hosting and domain will be managed from one place 😊