Day 4 another close call

Day 4 and I'm already struggling with temptation. I woke up this morning thinking about a girl I've liked and sexted. It never went as far as that, but the girl came on strong when it came to flirting. I think the only reason it didn't go further was that we lived so far apart, and she traveled a lot. Those “what would it have been like” thoughts still roam around in my head, but I know the devil is trying to tempt me. I know God has so much more planned for me. But I need to get rid of this temptation in the morning. I was wondering if any of you users have any advice to get through the morning temptations?