Suggest Treatment For Acne And Dark Spots

i am guy suffering from face problem.. i am so depressed that sometimes i think it is better to be suicide than trying out 100 of products and about 20 treatments... it is going on since last 4 years.. rednesa.. over sensetive.. too much acne and so many dark spots.. skin of my face just got destroyed.. please help me with a treatment which can remove my problem permanently...