Feeling no guilt/ heart like stone

salaam all. I need some advice, I’ve been fighting this addiction for half of my life. I’m 30 now and I’m exhausted.
I went through a bout of 1year maybe plus of clean time. years ago I attended sex addicts anon too, to get support irl. I didn’t like that though.
I’m currently back in the throes of speaking to opposite gender online, and then sending pics and vids of myself to please as many ppl I can. the last time it was this bad was like 7/8 years ago. I’m too old for this.

ive been taking steps to be more islamic inclined but for the last 7/8 days i have weakened. I am even going against what’s prescribed for me islamically. And unfortunately my heart has turned to stone. I am not feeling guilt. But I don’t want to die on this sin. It’s affecting my working life, personal life. I can’t look friends in the face, I can’t look colleagues in the eyes.
I feel like Hannah Montana 😭😭😭, living 2 double lives. I want to feel guilt and disgust at this sin but right now I don’t feel It. I feel like I want to continue talking to the people I’m chatting with daily. Even though my mental health is in decline, my peformance.
I am reading prophet Yunus (as) Dua On my tongue. But I am the biggest hypocrite walking. how do I hate the sin, accept it, and walk away from this once again?

I am struggling to get married as suitors are few and in between. trying apps but it triggers me to need validation and attention and the people on there are dirty minded anyways. Even when I am not joining. I feel like I’m going to end up alone for the rest of my life. I don’t deserve a loving spouse. And these people currently complimenting me is filling something inside of me.
and I’m sad that I don’t feel sick about it or disgust. I used to :(

pls make Dua for me.