Where specifically are you trying to upload the file?
Generally, if you’re not able to upload files due to the size of the file, you’re reaching the upload_max_filesize limit in php. You can easily change this limit by updating your .htaccess file or your php.ini file. For more details on this, please see: How to update your php settings
Let us know if you have further questions on this.
Ok yesterday I found my phpinfo() page, but obviously I cannot edit the information here, I can only view it. According to the link you had sent me, it says that I can update my php.ini file by going to the public_html/php.ini. So my next question is, where do I find the public_html?