You're right. I've had a lot of trouble with lustful thoughts too. They don't occur so much now. It is kind of difficult when you are in a relationship with someone not to have lustful thoughts concerning them, though.
Another sin I have trouble with. I have trouble with the "honour your parents" commandment. I am generally obedient towards my parents, but sometimes I am far too judgemental. My mother didn't like it when I told her she had to accept Christ in order to go to Heaven! My parents tell me conflicting stories about all sorts of things. At least one of them has told some pretty nasty lies and I can't stand the reality that one or both of them have been lying to me!
Anyway, that's going off the subject a bit. Glad you like my avatar, I found it in the gallery on this forum! I had a look at your website, it's great. Disturbing of course, but that's the reality of the situation.