Good luck to you. I hope I haven't been too critical and discouraged you from playing 14.1. It's a fun game. For the first years of my active time playing, I played solely for fun, not even competing, that came later for me. It's easy to get confused when there are 15 balls on the table and no set rule for how to go about clearing them off. It's easy to get abit confused and discouraged when you can't see the way to run the balls.
When or if you do decide to go back to 14.1, maybe it's a good thing to approach it through playing just 5 or 6 balls in the beginning, like you do with 9 ball. Getting a feel for setting up breakshot is really the way to go in order to run multiple racks reliably. But you don't have to do it this way, just run them the way you think is right and use videos to understand what you could do better. And do have fun, try some wild things. If you never try something crazy, you're not learning.