Create Multiple YouTube Channels with 1 Gmail

Login to your YouTube account and proceed.

STEP #1: Click on your picture at the top right to open up the menu.
STEP #2: Click on YouTube Settings (see below)



If it's a brand new account...
...it will give you a nice little form to create a channel.

see here:


...If it's not a brand new account...
It will take you to your account information...
here, simply click on "Create a new channel" at the bottom of the page (see below) and it will take you to the form.

Enjoy!