Suicide, is it for me?

I'm 21, have little money to my name, and am slowly slipping into an overwhelming state of anxiety. This is due college class work stacking up, medical bills, and the lack of zeal in my life. People, namely my family and friends, have told me, "Things will look up," or, "Try doing something that will cheer yourself up." But nothing cheers me up anymore. My younger brother is the only person who is straight with me, while the rest of my family gives me the same recycled "do your best...mind over matter...hang in there baby" crap that has been fed to me by therapists for years. I just find it hard to look at the positive when my life is a walking failure. My grades are never spectacular or noteworthy. If I were to die I wouldn't be the most missed person out there. I kind of blend into the background, bland and uninteresting, with no desire to keep up the charade that I'll make something of myself someday or be somebody of worth. On the stage of life, I am the extra to the drama of others, only moving to convey a sense of community, a certified space filler. I don't matter. Not to me. Not to anyone.