I think we're all adults here. I don't think a school age exercise is necessary for someone to find their own personal aesthetic. I'm sorry, but I firmly believe that's true.
If you're over 20, you know what you like, what you think is good, already. It's in you. You know what music you like, you know what art you like, and you know where you come from. It's in you. You may not have articulated it--you may never need to--making what you want to make is articulation enough for most. Once you get to the point on the wheel where you can make what's in your head, you'll have found your personal aesthetic naturally.
Anthony Bourdain was once asked "Have you learned a lot about cooking on your travels?"
"Oh yeah, totally," he replied.
"Do you think you'll use what you've learned in the kitchen? Incorporating what you've learned in Asia, Africa, and South America into your dishes."
He gave a curt "No," before continuing. He said something like: "Look, I'm trained as a French chef, cooking old school dishes. I'm going to continue to do that, that's what's comfortable, that's where I come from. Those are my roots. I've learned a lot about cooking in other countries, it's true, but learning who other people are doesn't change what I already know about myself."
A lot of artists, actors, musicians, and poets actively work to remove all influences during their creative periods, saying they find it stifling to their own work. Some fear subconscious plagiarism.
Sometimes it's more about finding the confidence to say or sing what's already on your tongue or draw what you already see on the paper. The best songwriters make the songs they want to hear, the best movie makers make the movies they want to see.
Make the pots you want to use and look at. Make what makes you feel good. Make what reflects you and your roots. That's your personal aesthetic.