Ohh sweet little Taken Tot. You have yet to experience Xursday. Sit tight, and wait for the daily reset tonight. Xur will come and bring his weekly goodies, and he only takes strange coins. You are going to need quite a few in order to buy things from him, but he will have things that will infuse you with the light of a thousand guardians. That is, unless he's selling sunbreakers and No Land Beyond...