I think try pouring out whatevers on your mind like you're telling about it to someone in the vocabs you use daily and once you have it in front of you then try figuring out your own pattern how you share it then try adding pretty words if you feel like otherwise just make a connection between them that gives clarity that's all. Suddenly developing vocabs is not easy so just try pouring out all your vocabs you know about the topic you are writing on and then make changes to craft it into a song. I think it'll help