Off the top, from what you said, wonder if maybe you didn't get the level of Salt right for your tastebuds.
Looks you really like a Hot palette of flavors. (Just curious, are you a Smoker?) So you'd probably enjoy an amount of Sriracha. Or this one
https://www.hotsauce.com/el-yucateco-xxxtra-hot-chile-habanero/
Some other ingredients you might experiment with could be :
[These add a more "Savory" flavor]
Liquid Smoke (Comes from Hickory)
Chicken Boullion
Tomato Boullion
Garlic Powder
Bacon grease from Applewood Bacon
Cumin (<-- The main ingredient that your tongue likes about Enchilidas)
Mild Curry
Turmeric (if you add this, very little)
Oregano and Sweet Basil (like a 3:1 ratio with each other)
Paprika (or it's cousin Annatto) (<-- These cast a little Orange-ish coloration)
Cilantro (Dried)
EDIT: Also lately I've been experimenting with adding Tajin into things. Bet you might like that.
https://www.tajin.com/us/
And always... some amount of Accent, and Lawry's Seasoned Salt.
After you grind and then knead in the spices into your ground in the mixing bowl. (<-make sure you do this thoroughly to evenly distribute all the stuff you add) Cook a small portion in a pan to spot-check and adjust as needed.
The trickiest thing will be slowly bringing the desired level of Salt up. If you blow it and go too high with the Salt, add back in some more meat into the mix to bland it back down.
