Dont worry Abubakr bhai, things will get well soon. Of course, you got some lesson to learn but in a very hard way. I was lucky for sure, but I took proper time & market survey before finalizing the engine, and I think that's the 2nd reason for my successful swap.
In kabariyon ki baaton mai nahi ana, sunain sabb ki, lkn karain apni marzi.
Till now, I have done 2 engine swaps & both are successful on the 1st attempt Alhamdolillah.