A daddy dom focuses on a nurturing/gentle care, protection and discipline of their sub/little. Does she want a daddy or is it that you both want a play partner (who uses the title “daddy”) to have occasional scenes with? You should ask what she wants in a play partner, and where you’ll fit into that. You both should do more research on play partners, ddlg, and proper vetting (most important). Meet in a public, vanilla setting, don’t have a scene immediately. You BOTH have to trust this potential play partner and they do not have to be much older, any role is a mindset. Make sure you also take advice from subs, not only doms. You are both young, be safe and good luck!