I use to tell student pastors this all the time…

You are not competing against other student ministries - but rather with teenagers alternative use of time.  It wasn’t the kids who were engaged in other ministries that I was concerned with.  It was with the teenagers who didn’t even have us (or any other student ministry) on their radar. 

 The same is true with church.  There are thousands of people who are already engaged with some church in your surrounding area.  This shouldn’t concern you as this is not your primary competition.  If it is - that’s another issue. 

Your primary competition is with people and their alternative use of time.  If going to your church is not better than hanging out at the lake, shopping, or staying in bed - than you have a problem. 

Give people an experience that will leave them different from when they walked into your auditorium.  If you don’t - the competition will win every time!