I highly recommend staying off the computers and internet altogether. If you have one well-filtered computer in a place where family are coming and going, use that one to check email, read and post on GYE. Then get off!. Don't linger at the computer. You know why you're lingering and surfing.
Make a commitment that if no one's home, you won't even go near the room with the computer. The more I read people's struggles, the more I suspect that THE COMPUTER ITSELF is a major trigger. Just sitting there clicking and typing. Your only hope is to just stay far away.
Guard your eyes in the street. Avoid images of women in newspapers, mags, the JC Penney flier. Getting turned on by what's walking around outside will only inflame the taiva to see it all at the computer.
Guard your mind against lustful thoughts. For this you will need to work the steps.
And take it one day at a time. One nisayon at a time.
There's no happiness like being clean. :
Hatzlach!
Alex