So, baiscally in the end you die? Or can i kill the dragon and get out alive?

I died because the endportal to get out wasn't activated. I fell to my death. AndI only made it there once, because the enderdragon kept murdering the map after that. And also, you should try to make the walls out of a weaker substance. The first time tried the beds only blew up a few blocks, and I couldn't reuse them bcause they burned in thier own fire. Please fix and kill de dragun.