Hello Brittney
Start from the beginning, make sure the presser foot is up when you thread the machine, make sure the needle is in the correct way round, the top tension should be about 4 or 5, you should only just be able to pull the bottom thread through with slight resistence, if it is too tight slacken the large screw on the bobbin case about a quarter of a turn anti clockwise at a time and test, any problems you can email me and m,ake sure you give me your model number and remind me of your problem, this site no longer allows email addresses to be shown so type in my address below as you say it not as you read it.
Ken
drivewithken at blueyonder dot co dot uk
June 2009