hello im new to this site!

as you can see in the pictures i have bad redness & scars problem im trying everything but nothing changes some of the scars 2-3 years old i am 16 years old. everyday im trying to clean pores cause blackheads but there are blackheads still and pores are too large,i tried potato,lemon,lot of acne products still nothing -,-. can someone help me?

also i started drinking green tea yesterday but with 1-2 sugars its bad? because it tastes rly bad without it.