Talk to Dermatologist on Acne Prone Skin

I have acne since 4 years i have oily acne prone skin , nothing makes any visible result , i havebeen using mandelic acid since 1 year almost, i use salicylic acid facewash or sometimes vitamin c facewash , then rose water as toner and an oil free moisturiser. And use spf 70 at am. I also use a gel treatment which contains retinol since 3 years almost. My skin is reacting really badly to my skincare routine . I turned 18 recently female and heigh 5'1 and i also suffer from ibs. I am also very religious with my skincare since the dayvi developed acne. Please help me, acne is ruining my life aswell as my face. I have also fixed my diet and stay hydrated.