Deveoper subscription for openshift container platform

I am new to redhat customer portal. I am trying to learn openshift container platform. I have the 12 months developer subscription, but it doesn't show openshift container platform in the products list. So I obtained a 30 day free evaluation. But anyway, I couldn't able to do much in 30 days.
What is the best way to get hands on with openshift?
Also, any pointers towards certification would help.
Thanks,
Ajith