I need help from a tax expert?

I made 22,574.99 this year. I have a dependent and I also claimed 10 exemptions all year long. They only took out 17.50 for federal and 6.00 for state. I also am a full time student. Will i get the tax credit for being a full time student and also the tax credit for my dependent. I know i will probably end up paying back money but just wandering how much would i have to pay or how much would i get back?