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.
The child must be: (a) under age 19 at the end of the year and younger than you (or your spouse, if filing jointly), (b) under age 24 at the end of the year, a full- time student, and younger than you (or your spouse, if filing jointly), or (c) any age if permanently and totally disabled.
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.
Dependents are either a qualifying child or a qualifying relative of the taxpayer. The taxpayer's spouse cannot be claimed as a dependent. Some examples of dependents include a child, stepchild, brother, sister, or parent.