Focus on python. It's going to be a MUCH easier barrier to entry. If you see a specific niche you'd like to focus on with C++ then sure - learn that. But I would not recommend starting with C++. I did start there 20+ years ago and wish there was an easier way in back then. My main gripe is there's 100 standard ways to do things in C++ whereas python code tends to be fairly uniform across enterprises / projects / etc.