cant get hard during intimacy coz of my bad habits

I m gonna tell my story in brief. So i have been watching a lot of porn since the last two years and now i am facing its bad consequences. I have a girl now. But whenever it's my time to shine, my pee pee disappoints me. I can't get hard for long. I face problems in getting hard because i don't get aroused coz too much pOrN. I don't even get aroused anymore while watching porn now. I feel really miserable coz it makes my girl sad.
I need to reboot. I wanna be like the way i used to be 2 years ago
PLEASE HELP

Only 2 years of porn and you can still get hard somewhat? You are way ahead of some people, start nofap now and work at it, I wish 2 years of porn was all I had