Bumps on chin - currently doing 6 sessions of Fractora

I have had these bumps on my chin, it’s scaring from acne but they won’t go away. I took accurate to get rid of active acne but bums still remain. I have done soo many treatments including 6 sessions of microneedling, 5 sessions of Venus viva, chemical peels and I am currently doing 6 sessions of Fractora… and I am not not seeing any difference. Please does anyone know why theae are and what could possibly cure them? I had them so much and they kill my self esteem.