Will major depression and anxiety go away on its own if not using medication? i've been fighting it 6 months now on my own and feel terrible.

Why not get help?: if you have been struggling with depression and anxiety for 6 months, why not get some help? I would try speaking with a psychologist to see if the symptoms decrease. If they do, you may not need medication. If they do not you can do a medication consult with a psychiatrist. Although depression does cycle 6 months is long enough to consider getting an evaluation and some professional guidance.