There is an answer to that important question. First what is your specific measurable goal? How much time can you devote to learning?
Here are some achievable goals from my students.
You've got to learn your instrument. Then, you practice, practice, practice. And then, when you finally get up there on the bandstand, forget all that and just wail.
I'm a professional pianist and music educator in West Toronto Ontario. I'm also a devoted percussionist and drum teacher.