CCC is so heavily oversubscribed that there is an insane race every year when tickets are released, usually involving downtime for the ticketing app. If finding the app itself already presents too much effort for you (hint: https://www.google.co.uk/search?q=ccc%20tickets ), it's unlikely you'll succeed in acquiring a ticket.

Your best bet is to source one through some affiliated group, if you know of one, otherwise spend a few hours familiarizing yourself with the ticket app, and have at least 2 browsers with at least 10 tabs each open on the app ready for the second a release happens