Set frustration to maximum!

I'll lay this down, I'm not primarily a code guy. My origin point is more on the art side. Understanding some of the Unity scripting is driving me up the wall. This is going to sound pathetic to a lot of people, but I've spent the last few days trying to get an object face a certain direction based off it's last xyz to current xyz. Sad as hell, I know. What pisses me off the most is I'd most likely have 50% of this game prototyped in GameMaker by now, intead of this peasly 2-0%. I think, maybe, I'm starting to grasp this Classes thing and how they have their own variables and functions, and you instance these in the code, and this jazz is applied to whatever asset the script is assigned to. I researched the math(trigonometry??) behind the actual finding of these things also, helped me understand better, but not solve the problem. Man was I enraged earlier, good thing I had that chili and a Cavs game to watch. I'm rambling now, I'll try this stuff again tomorrow, damnit.