In a shared hosting environment, here’s how you increase your max upload file size.
From the command line, run
php -i | grep 'Configuration File'
Then, using that information, copy the system php.ini into your account’s php folder. For me, it was ~/php. Your set up will be different. If you have cpanel, you should be able to find this information there, and you might be able to make these changes there, as well.