Bipolar Misdiagnosis?

It seems as though I have something different from bipolar disorder. The meds I take don't work and even my parents admit it. My symptoms include only sometimes mild manic symptoms, mainly swings of depression. I feel constantly on edge, like nothing is for sure. I feel immense anger for no reason. I get suicidal for 10 minutes then stop and go back to normal. i do very self destructive habits and go from wanting to do good things to dropping out in a second. I have a problem with authority and am very stubborn. I am very impulsive. Anyone have any other ideas of what it could be?