Lust arises every time I am alone

Similar to this question. I started vipassana with my roommate and we both meditated peacefully. But now that he left and I am alone, I have noticed lust in my mind that leads me to wrong websites and results in negative deeds.
 **I have tried to observe, but just could not control self**. I have read many related answers from my all time favourite [@Suminda Sirinath S. Dharmasena](https://buddhism.stackexchange.com/users/295/suminda-sirinath-s-dharmasena) , but regarding this topic, all answers sound very theoretical. 
May I know something powerful, though I know it will be difficult for me. Living with another person will stop my mind, but I think that is not a solution as thoughts can again come when I am alone.
**The real victory over lust should come when I am alone**. 

Kindly help, I really want to get rid of this.