Where I can add a box that lets people upload things like a document or video

I also wanted to see where I can add a box that lets people upload things like a document or video, how do I do that?

You can try using the File Upload field if you want your user to upload documents or files to your form. Here's the guide: https://www.jotform.com/help/332-How-to-Create-File-Upload-Forms

Please try it and let us know if you have any questions. Thank you.