Have you ever written any of your own music?

Yes. I wrote a small piano piece in B major for my music theory class. I've also written a few other small pieces, the longest of which is 5 minutes long (I composed it on GarageBand). It's all fairly rudimentary stuff; I'm not a talented composer. But it's fun to do. 

Yeah ... back when I was taking piano lessons.  Every student had to.

And in middle school, music class, we had to create our own instruments and play a piece of music on it.

One song. One time. To God.  That is who will hear it.  Me and God.  

I wish I could!!!!!!

Yes and no.  You've heard of the Unfinished Symphony? I am working on the Unstarted Symphony.