Whether marijuana impairs your driving or your judgment depends on the amount of THC in it and your reaction to it. I don’t take anything with more than 0.5 mg of THC in it, combined with at least 20 times more CBD, basically a 1:20 ratio, in the form of a gummy. That gives me no psychoactive side effects at all, but relieves my chronic pain in a way that nothing else does. It sounds like you’re smoking a recreational form of marijuana that makes you high. The marijuana around today also is much more potent than anything we smoked in the ‘70’s. I’m using a medical grade marijuana product that tells you exactly how potent it is.