Matthew 26:41 (NIV)
41 “Watch and pray so that you will not fall into temptation. The spirit is willing, but the body is weak.”
Colossians 3:2 (NIV)
2 Set your minds on things above, not on earthly things.
Proverbs 4:14–15 (NIV)
14 Do not set foot on the path of the wicked
or walk in the way of evil men.
15 Avoid it, do not travel on it;
turn from it and go on your way.
1 John 1:9 (NIV)
9 If we confess our sins, he is faithful and just and will forgive us our sins and purify us from all unrighteousness.
1 John 2:16 (NIV)
16 For everything in the world—the cravings of sinful man, the lust of his eyes and the boasting of what he has and does—comes not from the Father but from the world.
Philippians 4:13 (NIV)
13 I can do everything through him who gives me strength.
1 Corinthians 10:13 (NIV)
13 No temptation has seized you except what is common to man. And God is faithful; he will not let you be tempted beyond what you can bear. But when you are tempted, he will also provide a way out so that you can stand up under it.
Philippians 4:8 (NIV)
8 Finally, brothers, whatever is true, whatever is noble, whatever is right, whatever is pure, whatever is lovely, whatever is admirable—if anything is excellent or praiseworthy—think about such things.
There are some verses to meditate on that might help ya. It's good to memorize at least the general idea of verses like this. The exact wording isn't important as long as the meaning is stuck with you. When you can bring up a verse in your head, it becomes much easier to realize when you're doing things wrong, and easier to know where to get the strength from.
Your flesh is going to fight you like crazy. Demons will whisper in your ear. You just gotta remember what the book says, and resist like a drunk redneck on Cops, basically.