Kudos... well said.
The bulk of my learning came from advice of other subs. Sure, my Master has trained me, but you have to be open to the idea of taking others advice.
And your attitude on all of it will ultimately form your dominant ways. An open mind is best on the topic.
Age is a restriction you're setting on yourself... its just a number. With effort and the ability to explore your dominant side in all aspects, you are capable of being a good mature Dom.