4X4 driveshaft broke off while driving 65 mph now will not turn over or start

I was driving down the highway at 65 70 miles an hour. I hear a loud thunder and it vibrates really hard. And then I hear boom boom boom. I felt something break off and hit the bottom of my car. My floor mat/board is raised up. I get out the car is still running once I pull off to side of the road I look under neath it and transmission fluid is pouring out. I finally get help. Mind you this is at 11:30 at night. I left my flashers on come back 2 days later, of course I knew my battery would be dead. We try to jump and nothing but the alarm and no power. It has been two weeks. I am going crazy. Please help. It was my 4x4 driveshaft that broke off is what i'm being told. Still no crank or start and no power.