We are sorry to hear about your customizations not kicking in.
I would love to help you with this topic.
The correct path to use is: [yourthemeorchildtheme]/tribe-events/wootickets
If that does not work for you, could you please send me a copy of your WordPress theme / child theme in a .zip file link (via Dropbox or Google Drive) so that I can run some tests on my end ?