To be a professional, you need like 2-3 years of hard training minimum, then a life-long learning of new technologies.

I recommend looking up some tutorials on YouTube, and once you get to a point, work on dumb projects of yours, maybe even build the open source projects you’re using yourself and run them in a debugger, especially if they’re in an early stage. Depending on what you want, you might also need a strong math background (likely more than what your high school taught - programming makes math a lot more fun though), knowledge of hardware, etc.