It seems like even the smallest mention of anything that is, or could be, sexual... is enough to make me start thinking about it! Argh!
I need to put myself inside a thick wooden box and ask to be taken somewhere remote in the World. Does anyone else feel like this sometimes?
Yes, I feel that way sometimes. Romans 12:1 tells us that we should be constantly transformed by the renewal of our minds. I found a few things helpful:
Consider your company.
Are you hanging around guys who always talk about sex in a non-reverent manner? Do they crack dirty jokes and talk about their sexual exploits? Reconsider how much time you really need to spend with them, if any.
Bounce your eyes.
Do you find yourself checking women out? Do you constantly fantasize about sex? I find many women attractive, but I have trained myself (over a great deal of time and hard work) to look, thank God that He made such a beautiful creature, then bounce my eyes away from her, and submit my thoughts and emotions to God. Force it out of your mind.
Find a hobby.
As a guy, I know that most of the time when I sin sexually, it's because I'm abusing my time. I'm just sitting around doing nothing in particular. Wasting time is a bad thing, but I think God would prefer you to do something else with your time
if you're going to waste it--play a card game or find a book to read. Find something you're good at and spend your time there instead of around things that could lead you down the wrong road.
Immerse yourself in the Word and good fellowship.
Fellowship is a term that is used very loosely in American culture. As Christians, we can get caught up in thinking that just a casual conversation about last week's game is "fellowship", but as it is understood in the Bible, it means an intimate (not sexual) relationship. Find good friends that encourage you to follow the Lord. Also, immerse yourself in the Word of God so that you will eventually start to think about sex in a godly manner, and with a degree of reverence. Then, when you start to have "sexual thoughts", they will be more toward the idea of what a beautiful thing it is, not a "recreational activity".
Just some thoughts.