The Tex-Mex stuff is abominable. You need homemade, pure, Mexican cousine. The Tex-Mex is watered down for y’alls tastes. Not even hot. I say, if the food does not burn all the way in, causing you to sweat, and burns on the way out too, then it was not spicy enough.
You have eaten in the wrong places. Stay out of the Taco Bell. ;-)