To create your own account go to demo.switch.cm and press "Sign Up" in the bottom left corner of the page.
Alternatively go to switch.cm/sign-up directly.
Enter all the basic information (no credit card or billing address).
After submitting, your Switch.cm subdomain will be created. You will receive details of login in your email but make sure to check your junk email if the message does not appear in your inbox.
Your subdomain is your personal Switch system.