I recommend using condition and loop actions to structure complex workflows in Power Automate. The "Switch" action allows you to create many variations depending on the value of a variable or condition. This makes it easy to organize branching in a flow. To repeat certain actions, you can use the "Apply to each" or "Do until" actions that allow you to loop on a data set or condition. Take this course https://citizendevelopmentacademy.com/courses/power-automate-training/ and it will help you solve the problems you have with this program.