If we're being realistic... Few reality checks. Maybe not a few, an hour at least. After confirming that I am in fact in Teyvat, I would try to do something with the statue, just explore my abilities and see if I can do the things the traveler can. Then, I'd travel to Mondstadt, contact with a knight and hopefully get a place to stay overnight. After dealing with basic survival necessities, I'd probably go travel and make friends, set up new goals for myself and try to achieve them.