I don't suppose you ever read the poem about the starfish?
if not.. it goes something like...
A man was walking along a beach and there were hundreds of stranded starfish.. drying in the sun, waiting to die. And he was methodically picking them up, one by one and tossing them back into the sea.
A man approached and said to him. "are you crazy!!, You can't possibly toss all those starfish back into the sea. What you're doing can't possibly make a difference"
To which the man replied as he tossed another one into the waves "it mattered to THAT ONE!"
My favorite poem of ALL TIME...
No you can't save them all, you can't DO everything, but if you don't do SOMETHING who will? Any maybe that one little starfish you cared for, will make it through and survive because YOU didn't give up.
And it does make a difference.. trust me.
You just don't know about it. But like it says somewhere in the bible (not religious, sorry) When you do a good deed, if you tell everyone, it doesn't count. It only counts if you DON'T tell. Only you know the good you have done and God knows. Try to find some comfort in that. I know I do.
**A dream is a wish your heart makes :)