26 F need help

Salam everyone. I am a 26 year old married hijabi living in the UK. I am having difficulties managing my thoughts. Due to sexualised content online and in movies I always find my mind wandering to haram thoughts. My husband is not the best he has his shortcomings, our relationship is not physical as he is deeply religious and believes in physical stuff only if it's to procreate. Even when we have tried for a baby he hasn't been able to last too long and has issues with his libido. This is why we've even taken a break from trying.

It is becoming increasingly difficult for me to manage my thoughts especially without a release. I find myself becoming distant from my husband. I tried going to gym to release some energy but found myself becoming even more distracted.... I feel wrong and know the thoughts are haram. I would appreciate any advice.