Porn addict ( foot fetish)

Hello, first thank you all for reading my post means a lot, i'm new here and really want to stop my addiction, its ruining my life

So i'm a foot fetishist, since i was very young, i've always found that femal feets are attractive, even though i was too young ( 7 8 yeard old) , and had no idea whats a fetish is, so i grow up, and im getting more and more addicted to feet and specially girls wearing pantyhose or stockings,

At the age of 14 15 i started watching porn like any other guy at this age, but i was only watching feet related contents like footjobs, footworshipping, foot massaging , dominas ... you get the idea ... and more the years passes, more i get into this, getting from one masturbation per week to masturbation everyday ! I knew i has a problem and was afraid to talk to someone about this , until 3 months ago, when i talked with my girlfriend about this .. that i like her feet and i get arroused by it, she was cool with it and pretty liked it, we couldnt get to the action since we dont live together, but i was happy that there is someone who didnt think that im a weirdo,

For this particular reason i feel that i must only be with my girlfriend, and that i need to get rid of my porn addiction, but its really hard, by the way my girlfriend dont know about my porn adiction, she only know that im into feet.

How can i get rid of this bloody addiction

Thank you