Quick tip for new developers: 90% of your life is going to be sending or fetching data from an API. Get really good at that. Go to mockaroo.com, create an account, and you can create your own dataset and then turn on an API where you can access that data.

Then spin up a Create React App or VueJS app and start fetching that data. Get really good at it. You should be able to write a simple "fetch" using Fetch or Axios in your sleep. This will help you a ton in your career.

Oh and if you're a Backend Developer then WRITE the API and then create a simple front end so you can trigger it in different ways.