A dependent must be a U.S. citizen, resident alien or national or a resident of Canada or Mexico. A person can't be claimed as a dependent on more than one tax return, with rare exceptions. A dependent can't claim a dependent on their own tax return.
The “dependant” for this particular credit must be: your parent or grandparent. your child, grandchild, brother, or sister under the age of 18 (over 18 qualifies if the dependant is physically or mentally impaired)
The short answer is no, you cannot claim yourself as a dependent on your tax return. This is because you are considered to have your own personal exemption. In other words, you cannot claim yourself as a dependent because you are already claiming yourself as a personal exemption.
An individual claimed as a dependent must be a citizen, national, or resident of the United States, or a resident of Canada or Mexico.