The cult freedom day is what we call our "shunniversary".
The first year I tried to get a bunch of local exjws together and it bombed. Only one showed up.
Last year I started the "shunned" podcast on my second Shunniversary.
Aside from that, we don't do Valentines Day because my wife hates how forced and all about women it is.
We do the rest though. We love Halloween, Thanksgiving, have a very secular Christmas, New Years, even fireworks on the 4th of July. A friend has an adult Easter egg hunt and we did that last year. Have fun and enjoy these little things to look forward to throughout the year.