I have depression, but I don't want to tell my parents. What do I do?

I know this is kinda long, but PLEASE PLEASE PLEASE read.

First, don't tell me that I'm overreacting. I'm not. my 2 aunts, my mom, and my cousin all have depression and my mom and one of my aunts both have bipolar disorder in addition to the depression. I know the signs and symptoms very well. my grandmother is raising me because of my mom's "issues." my mom was diagnosed with depression and bipolar disorder when she was pretty young (teen), because my grandmother saw the warning signs. my mom has tried to commit suicide several times, is a chronological liar, has been in mental hospitals for her depression/bipolar disorder, has been arrested more than once, finds and dates the sleaziest men possible, and that's just a few of the things she does/has done. (I'm sure you understand why I live with my grandmother). Anyway, since my mom has screwed up he life so much, I tend to consciously and subconsciously avoid anything that is similar to anything she has done. I don't really know how to word that, but I hope you get what I'm trying to say. I'm not going to go into great detail about my dad, but there has been an ongoing custody battle for me for years and I ended up living with him (against my choice/will) for a year about 2 years ago and it really scarred me (again, not going into too much detail). my point is, I'm trying so hard not to turn out a screwup like them, and I really don't want to admit that I have depression. I KNOW that I do, I've seen the signs before and know them well. That's the only reason I've been able to keep it from my grandmother for so long. since I know the signs/symptoms, I can hide them. my grama lists basically every day that certain things that I do that remind her of my mother. not things that have to do with depression, just habits that I have, the way I organize things, etc. It also doesn't help that I look EXACTLY like my mom. Anyway, there are so many seemingly insignificant little things that I do unconsciously that are so much like her, that i don't want to be any more like her. I'm afraid that if i admit that I have depression, I'll end up more and more like her. I really feel okay most days, but once in a while I get REALLY down. I don't think about suicide or anything, but still. . .I just don't know what to do. should I just ignore the depression and move on? Work on it by myself and try to catch myself when I'm feeling down and do something to cheer myself up? Gahh, I just don't know. . .

I have depression, but I don't want to tell my parents. What do I do?

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