You are mistaking what form 8332 is used for. That form allows the custodial parent who the child lived with more than half the year to release the dependency claim to the non custodial parent to be able to claim the child on the non custodial parents tax return. It cannot be used by a child to claim themselves.
If you were claimed as a dependent by someone and did not meet the requirements to be claimed by them, then your only recourse is to print and mail your tax return and do not check the box that you can be claimed by someone else. You are not allowed to leave that box unchecked if you can in fact be claimed by someone else.
The IRS will process your return and then later in the year will come to you and the other person who claimed you and request documentation to support each of your claims. Whoever is ruled to be correct gets to claim you and whoever is wrong must return any benefits received from claiming you plus possible penalties.
