the bobbin thread has a certain way of coming off the bobbin and into its tension, maybe look in your manual or if you got a DVD with it I would spend some time going over those parts to make sure it is threaded correctly. New machines can be very intimidating, just tell yourself, I'm very capable of figuring this out and take your time either looking at pictures on how it is supposed to be. It will get easier, as you play around with it. don't be afraid of it.
Good Luck
Suzy