Hi @elmarad40
I have listened to your piano composition and followed it with the score. I think you have potential here, for there are motives that can lead into strong phrases, which lead into either period or sentence form. Then you can create small form (ABA), which would work great for this. I think Ryan video and Schoenberg book "funadmentals of music composition" would help you greatly. Schoenberg is not expensive. There are books, but I do not your budget. One is "Anysis of Classical forms" and "Musical Composition"
You might also look into harmony and counterpoint. Walter piston has one on harmony and one counterpoint. But there others. And there courses you can take. If you are studying composing, see if you can courses.
If not, it is harder. I know when I was music major, there were none, sadly.