If there is a counseling center at your school, you might start there; not sure if pastoral counseling is your thing, but I have found that to be useful and private in the past. But in all reality, you might want to swallow your pride and tell someone. I had to admit my depression problems to my wife, family and friends (not necessarily in that order). When I did, they were able to pitch in and help...btw, you don't need any reason to be depressed. It is an illness, and the guilt about being depressed is part of that illness. I wish you well in your search for help.