Am I the only one in my church who is struggling?

NO.  According to studies or surveys compiled by Covenant Eyes:

Among general public:
“Today, 68% of young adult men and 18% of women use porn at least once every week. Another 17% of men and another 30% of women use porn 1-2 times per month. This means for 85% of young men and nearly half of young women, watching porn is at least a monthly activity.”

Among Christians:
“50% of all Christian men and 20% of all Christian women say they are addicted to pornography.”
Among workers called into ministry:
“51% of pastors say Internet pornography is a possible temptation.”