I use ColdTurkey on my computer and Blocksite on my android phone to block website. Very good combination. I not only block porn sites, I also block every site that I spend or spent too much time on (reddit, twitter, youtube...)Also: I didn't have a girlfriend before I had a girlfriend. Being single is fine.I recommend reading "Models" by Mark Manson, it's the best book to learn about seduction.Get your porn habit under control, nofap will make your social anxiety disappear, become a seducing man and start approaching women and you won't be single for long