Body Acnes and Face Acnes turning black.

Hi, I am suffering from severe acene, my face which was full of acne form last 2-3 years not has less few acnes with more small small acnes but its full of scar, from the last 1 year i did carbon laser, 12 peels and more but nothing seems to work, new acnes comes and creates new spots on top of the old spots. Similarly, in the back and chest lots of acnes were there, and still 12-13 acnes exists, but the problem is lots of dark scars are there. My acne is coming irrespective of taking medication, i have yet not taken accutante though. I did blood sugar test, cbc, kidney, liver all kind of test and Everything is normal and no issues. I changed my food pattern but does not helped. I have around 1 breakout a day on the face and chest. But morely any acne irrespective of in face or hand or chest leaves darks spots. What can i do to atleast reduce dark spots and stop dark spots from happening for new acnes. I am 17 Thank You