Advise the monitor

Good afternoon everyone! Faced with this, uh, problem. For more than a year ago bought monitor from the company Samsung. 21.5 diagonal, 1920x1080, connected via HDMI. Before that sat on a square monitor, and as they say, did not know the troubles. Immediately faced with a problem that cannot set the monitor for themselves. The brightness is much too high, on the contrary very dark. But more confused some Chur overstated sharpness, if you include something colorful to the eye may leak. Comforted myself that this is such a cool monitor and I need to get used to it. Sat in the end behind this, not much is not enough as much as a year... Not used. Moreover, I became more tired of the computer after an hour of the Scripture text before the eyes of all merges, and if you play some cheerful game, where a bunch of special effects, then go some brakes))
Before on the old Monica was not like this. Therefore, I ask Your help and advice, tell me a normal monitor without such an effect here, preferably with the same diagonal. I would be grateful for Your help!