Snowy has a long life ahead of her yet Give her time, figure out what foods are her favorite for treats. Start with something easy and fun. Yoshi actually started out with 'Step Up'. I'd have her step up a couple times and reward her, till she understood and was super eager to do something so easy for a treat.
Yoshi is now 7 months and can step up, turn in circles, give lots of kisses, and has just mastered falling backwards 'BANG' shot from standing on my hand. she will swing lifelessly until we say 'Good job Yoshi!' and then will spring back up with a bunch of flapping.
Good luck in future training, just stay persistent and make it fun and you will be surprised what Snowy can do