Traveling into my favorite show ( discontinuing)

Trying to find a fan fiction about traveling to gravity falls? Well your wish came true, yin is a girl who is very doubtful about her skills well yin is good at drawing ,fighting, a little dodging and creating machines yin is not good at communicating with strangers so when someone she doesn't know talk to her (doesn't count people she literally see's everyday) she gets to nervous and runs off yin is sometimes quite and she keeps things to herself even when she is hurt well unless somebody finds out she will sometimes tell them.