Just to ease your worries: she never made an Amazon list, never took me up on my offer.

If you make an Amazon wish list we can buy you the stuff you wanted and deserved. Be sure to make your address private and the items can be shipped to you without giving away your address to internet strangers.

Btw: your family sucks and I wish you'll know that your self-worth should never be measured by their behavior and their attitude towards you.

Please talk to a school counselor, trusted teacher or administrator about this, not only did they steal your property but they are also stealing your social security money. That is fraud and you should be able to get a job if you want to, even if that means getting less money from social security.
You may also contact the Social Security Administration and ask about your rights as a minor and see when you can have the payment for yourself instead of having your parents intercept it.