I suggest that you read the caption to jumper photo posted by bsms, if you haven't already: George Morris is a master, & he says it's just human ego who wants to tuck horse's noses in or down! Don't mess with her nose ever, but bring her along from the rear as all have advised. Since she's so green, I'd gymnasticize & educate her without a bit, also: bosals, knotted halters, etc. save horses' mouths & give you an independent seat, which is needed by every rider. Start riding her in an enclosed space with one rein in a knotted halter, & be a passenger at all three gaits before you start using rein.