How to organize my pages

Hey design, I’m pretty new to wordpress but I found out a good way of organizing pages is that when you create a web page, on the right side there is an option that says “parent page”. This allows you to select which page the new page goes under. It’s like if I’m talking about ice cream on one web page and and cookies on another. If they’re both sweets, I can say the parent page is sweets. I’m not sure if this is only because of my theme or not though… Kurt also had a good idea! hope I helped~