You can use an online python editor, or download a code editor vscode on your computer.
Follow the w3school python tutorial to learn the basics of python.
It’s not so much the language that’s important to learn, but general programming concepts, such as variables, data-types, loops, functions, classes, etc. What you want to be is an expert in these concepts rather than the language itself.
If you practice everyday you will become familiar with python very quickly, but programming is a skill that takes years to become an expert.