Black line following racecar [closed]

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Hello, Me and my friend are working on a self-driving RC dragster for STEM project. The car must follow a 5mm wide, 20m long straight black line. We initially wanted to use simple three black and white sensors and microbit microcontroller. We managed to make and test working prototype. But it didn’t work. So we decided to use camera connected to raspberry pie. Now we need some software. OpenCV seem like good choice. But we have only basic programing knowledge at best. So I would like to ask If someone could give me some advice, or point me in the right direction. The goal is to generate pwm signal for servo to steer the car. I don’t have much time or motivation to learn python from scratch so Iam looking for easiest possible solution.

Thank you for your advice.