My needle is hitting the metal piece under the bobbin holder? Singer stylist 522.

SOURCE: sINGER iNGENUITY 7436 not picking up bobbin thread hitting on plastic piece

did you oil moving parts?

SOURCE: Bobbin holder problem. Needle hits bobbin holder

Is the needle all the way up in the holder? Have you checked the timing with the bobbin and the needle. Look in your manual for needle timing

SOURCE: Needle hits the bobbin holder and doesn't grab the bobbin thread

Also note that using a red band Singer needle will cause this exact symptom. The Singer needle is about 1.5 mm too long for use in any other machine. Ensure that you're using a standard needle. (Schmetz and Klasse are good examples.)

Your machine may also be out of time, which would require professional repair.

-R

SOURCE: Threading bobbin on singer stylist 522

To wind a bobbin put the cotton reel on the top pin, take the thread to the left and round the little wheel and back to the bobbin that should be on the winder, wind the thread round a few times to take a grip, release the stop motion in the balance wheel, turn the winder button so the winder moves to the balance wheel and press on the foot control slowly.
When you put the bobbin in the bobbin case make sure it turns anti clockwise.

SOURCE: Bobbin won't spin to allow needle to catch thread

sometimes when you break a needle it can cause the machine to
jump time, the machine would have to be taken to a sewing machine
shop to be checked by the technican