That's because you're expecting too much too soon. I built dozens of things as a teen that looked like they were built with a hatchet and chain saw. Even now decades later I learn new tricks and techniques all the time and my skill set is constantly expanding.

Guys at the field are always praising the quality of my work, because its much better than any ARF, but I'm always unsatisfied and strive to keep improving.

Have goals, but make them realistic or its easy to get discouraged. You're not going to build concourse quality after just a few attempts.