The Older sibling saga

I'm the older daughter, and I could totally relate to the older girl. You get to be treated like a model, the mature, the example, till you do any failure , and any good thing you do they would tell you that you did nothing more than your obligation. I'm 28 now, my brother 25 and the youngest. My mom it's getting old and dependable, and I'm turning exactly like her while my brother stills get immature actions, while I can't. But the point is, if we don't get that place, no one would function alright. Like the example on this manga. The father it's getting exactly what he wants (the trust replacement, food, clean house and clothes), the younger sister, if she didn't get treated like how their mother treated the oldest, would problaby never get the actual situation with seriousness. It's obvious that the oldest would get the worse path, the hate followed by imitation. It's a guilty illness that everybody from a family could get, but the illusion of "everything's ok" make someone pay double, in this case, the oldest. Other thing that gets worse on the situation is outside people comparing, revaluing each one's worth, only telling how good you are if you are holding the reins. "So reliable" is a sentence with a cage meaning. So I can't give any advice, because if I knew one I would use it myself. I love my family but can't avoid the facts.