If you want better answers ask better questions.
Example instead of asking how to do birthday parties ask, Why do you do birthday parties?
I would answer - I believe I can make huge changes in kids through martial arts. Developing a better Attitude, Behavior and Character, leading to more opportunities and success. Birthday parties give me the opportunity to share what I know with 15 new kids and parents each weekend. Several of these kids are going to continue and benefit from the martial arts.
Once you have a better answer you will have a direction on what to do. My instructor Ed Parker taught learning "Why" is much more important then learning "How."
Start by asking better questions.