First of all, be calm, we can always revert. Secondly, when you launch Minecraft, stay calm. Look in the lower left corner, where it says Profile? Make a new one.
Remain calm, and give your profile a name. Snapshot is fine. Check the box for using developmental versions. There will be a warning. Accept the danger. Select “use latest version” and save. And you’re done! While continuing to remain calm, come and play with us at play.dmzcraft.com. We’ll shortly put up the Creative map on snap.dmzcraft.com!