I hold un undergrad in business and I want to become a data analyst, but I don't know where to start. Do I need to go back to school for this? after some research, it turned out I need to start with SQL then move to Power BI and finally learn Python, which apparently is the most complex.

I tried to find some free resources online but I was unsuccessful, they're either too advanced or they just explain without showing stepps (I'm visual learner). Also, how do I even learn? I know I should practice and I'm aware that there are some websites that lets you practice for free but is it like learning math? so write down the code and then type it in the website?

I am very lost, so any recommendations as to where to start and any tips would be greatly appreciated.