You still haven't proven anything. You've claimed things, but have no evidence to back them up. To prove what you've claimed, you need irrefutable evidence that applies universally to all humans that humans are evil and selfish and don't care about others. A single person's life experiences are just anecdotal evidence and cannot be used to make a universal claim about human nature.
I need to go to sleep now, so we can't discuss this any further, but I recommend you think really hard about your position on the matter. It seems to me that you're jaded and that you've made a large number of assumptions about humans, but don't have proof to back them up. I can't say for sure, but I have a sneaking suspicion that your logic for humans being evil is, ultimately, circular and therefore fallacious. I'm not trying to call you stupid or foolish, but this is a very important philosophical issue and you should do your best to find the truth.
One last bit of food for thought:
If humanity is inherently evil, then you're evil too and you probably deserve all the bad things other people do to you. If you (and by extension all other humans) deserve to be treated badly, are other people really doing bad things when they do them? And if they aren't doing bad things, are they really inherently evil?