There may be something wrong with your display or settings if you run at full brightness anyway,.. especially if its still too dark!
Nights are pretty dark, but that's intended, but the day is perfectly bright enough for most people without tweaking anything.
can you try another monitor or TV just to test?
I don't have another monitor or tv with me since I'm living in a dorm right now. Other games I play on this laptop are perfectly find to me. Is there a way to tweak it? The only settings I've found are graphical settings and render distance which I've played around with already.