The following three forms of possessive pronoun "your" are used in Hindi.
Your = Aapkaa, Aapki, Aapke = used with elders or formal acquaintances.(Respectful/formal)
Your = Tumharaa, Tumhari, Tumhare = Used with equals .(Informal)
Your = Teraa, Teri, Tere = used with children, near and dear ones. (intimate)
I believe, you should use "Aapkaa/i/e with elders and Tumharaa/i/e with friends and other peoples.