sora628:
But I need somewhere to start--Today!! I need to have some progress for tomorrow. What are some basics I could start with to put into my code?
I posted exact code for how to make the determination whether to turn left, turn right, or go straight, given where your current GPS position (N, E) is, your target GPS position (N, W) is, and your current compass heading.
If you don't know how to actually read those values, or if you don't know how to control the car given that you know which direction you want to go, then you'll have to ask a different question.