Hi Pam,
Don't give up!
As your machine has been in storage for so long, have you checked the needle retaining bars? The foam has probably flattened and that will cause all sorts of problems.
It would be a good idea to give the machine and carriages a really good clean. Having not been used for so long, the old oil and grease will have solidified and will need removing and replacing. Once new oil has been applied, things should start to improve.
Hope this helps get you started.
Kind regards,
Sue
November 2013