my drive axle is leaking and won't stay in

installed new left side drive axle. while driving, it popped out. I re-installed the drive axle and it popped out again, but now when i put in drive, it does not move and there is an awful sound coming from the location where the drive axle connects to the engine. The front left wheel hub bearing locked up causing damage to drive axle. So i replaced drive axle but did not replace the inner seal. started to see a leak. So i pulled the drive axle out and replace the seal which stopped the leak. days later, the drive axle popped out, so I re-installed the shaft and it popped in. It popped out again, but now when I tighten the hub nut it pulls the shaft away from the trans axle. I popped it back in and put the car in drive and it did not move but now I hear an awful noise where the shaft connects to the trans axle. do I need to replace the drive axle again because I screwed up?