Let yourself be challenged.
Kung fu is an enormous challenge for my mind and my body. I believe that as adults it’s rare that we take on anything really really new. For myself anyways, even if I tried something different it was usually an extension of a hobby I already did, or had done before.
Consider trying something so far out of your box that you will suck at it. It will remind you what it’s like to be a student and make you a bit more humble. Possibly even a better teacher.
Let yourself be frustrated and then put in the long hard work to get better. Learn perseverance all over again.