What is the best way to code a drone?

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Hey guys. I'm coding a drone that can pick up golf balls for a project and I don't know where to start, I have little experience in coding but have a general idea of what to learn. Someone said that to make learning ROS easier you should learn either C++ or Python (I chose python) and Linux. The drone has its own camera so I can code the detection system through there but I don't know how to connect that to ROS. The drone can connect to your computer to through its own wireless network but I'm not sure how to code it after that. Any help would be appreciated.

Thanks!