If your pastor has said not to go over your ministry leader's head, then you have no choice but to obey. I would try and go about things in a different manner, but hopefully obtaining the same result. For instance, whatever you may have scheduled for the remainder of the year, ask for assistance from your ministry head. Get their take on the idea or event and see what happens.
Or, ask your ministry head what their vision is for the youth of the church. If you want to grow a garden you have to start with one plant.
I pray this helps.