What pages to set cart, check-out, my account

Hi, I'm a bit lost on what pages to set for cart, check-out, my account. Were these installed in the theme? I created a page PEAK College admissions and assigned this for the cart page in woocommerce, settings, advanced. When clicking on cart it takes you here. When clicking on checkout it takes me to another page I created Peak College Student registration, but there is no opportunity to check out. What am I doing wrong here. I have linked my paypal account. It feels like there is meant to be theme pages for cart and purchase processes, or is there something else I need to do with the new pages I made? Thanks Jon