So, I'm really getting into composing (mainly in Ableton Live), and I've discovered that I naturally gravitate toward writing instrumental music. If I had to describe my music, I think I'd call it programmatic. I try to write vocal music sometimes, but I freeze up when it comes to writing the actual vocal melody. Now, this wouldn't be so weird, if I myself wasn't a vocalist. How can I spend so much time around vocal music, and yet not be able to write any myself? What the hell is wrong with me?
what might be helpful is to get the writing done outside of the program. just get some paper or text, and your favorite playable instrument. write what you want to write, then once you know fully how it goes then go into the program and start putting it together according to the road map. if this still doesn't work then i recommend spending some quality time with the words alone. open a text file or blank piece of paper and go bananas for a few months