Grad school and loans

I’m supposed to go to grad school this fall, however I just found out how expensive it is. It’s 140k for 2 years for a humanities field. I dont think I can handle that. Does that mean I’m a failure? I can always go back later right? I’m 2 years out of college. Will I be too late in a few years? The money is too big of a risk in my opinion. I’m so sad