Aiming for create my personal stock screener but not sure where to start with.

[pythonocc]

My objective for learning python right now is to able to code and create my own stock screener that based on my preference as the available stock screener doesn't fit to my criteria. I have zero experience in coding and willing to take time to learn but there is too many things I have to learn and not sure which one is helpful in achieveing my objectives. Hope anyone with experience could give me some sort of direction. Thanks !