Create React app:
npx create-react-app NAMEOFYOURAPP
To run your app:
Complete the Do You Want to Build a Snowman test suite in your javascript-foundations repo. You already have this repo cloned down, so no need to re-clone. Just follow the instructions in the Do You Want to Build a Snowman README.
Spend some time today working through the javascript-foundations repo. You can continue working through the mythical creatures or spend time working through a different test suite in there - your choice!
Not in any particular order.