First, remember that temptation is not sin.
Temptation is a bird flying overhead.
Sin is letting it come to roost and build a nest in your hair, and only you can allow or prevent that. One of the most encouraging and strengthening memories you can have is to remember that Jesus was tempted that way, too. Yes, that same way. The circumstances may have been different, but the essence of the temptation was just like yours. And just as Jesus prevailed over that temptation by responding with the Word of God, so can you.