Go for it Girl,
as you have already stated, you will do the course then consider if you wish to teach!
Would it be possible to start with teaching Navigation to those who already hold a certificate?
May be a way to build into the the whole teaching regime, find your style and become confident at it!
I only came to RAA and gained my instructor rating after many thousands of hours flying GA, however came from a gliding back ground where I had gained an assistant instructor rating at a relatively early stage in my flying career. Still only have 120 hours gliding including