Sounds fabulous.
And with 500W no wonder you are flying along, that’s way more power than the (1hour) power ability that top professional cyclists will admit to.
We have a female rider in our team who rides an e-bike, she’s often joins long rides, sitting on the front of the bunch at 40Km/hr, cool as a cucumber while the test of us tuck inline behind
I certainly would not rule out an e-bike for when I’m older.
I trust you do wear a helmet, certainly at those speeds it is advisable.