I cant get into minecraft, it keeps saying I have a crash report.

I have bought Minecraft just today and I downloaded Java as it said I needed it. Soon after the launcher was set up, as I saved it and ran it and I thought it would work when I pressed play.

So the green bar goes all the way to the end, but it takes about 10 minutes, till it actually tells me I have a crash report. It keeps telling me this every time I retry to play it, and I don't know what to do as I thought I had done everything that would make it would. I don't understand what it is telling me on the crash report.
Someone please help, I'm new to this