How to censor our thoughts?

Sir,
Greetings.
Nowadays the newspapers and commercial advertisements are lust provoking. It requires immense care not to look at wrong images while reading news. It becomes so difficult to avoid those kind of images from all our surroundings. I cannot afford to stop surfing the net or stop reading any news/books. Is there any way out? Or these things will even out in the long run and I need not bother? Please help.