Communication, Communication, Communication!!!!!! If you haven't already, write down your goals and list everything it will take to get there. Sit down with the owner again and make sure you are both on the same page regarding these resources. Make sure you are on the same page regarding gymnast commitment, required hours in the gym, progression to team (invitation, tryouts, etc.) HAVE A PLAN and GET AGREEMENT ON WHAT IT WILL TAKE!
Once you have everything written down, start ASAP to inform the parents about your plans. It could be a great opportunity to build some enthusiasm and create vocal fans for your gym. This type of marketing is the BEST your owner could get, and it is virtually free. Just make sure to avoid the pitfalls you see discussed at length on this site...parents frustrated with "fuzziness" over what to expect. Most gym owners and coaches aren't in business because they love business, but because they love gymnastics (and hopefully kids!) It may not be fun to sit down and write out a detailed plan, but your parents will thank you, and reward you with referrals!