There are like 3 moves that would put white into a better position (he is far better already)
Qe1+, Re1+ and Qd5 are all perfectly viable for white and make him just winning. I dont really understand how this is the best tactic of your chess career...
8...dxc3 is just losing if im not totally mistaken.
I ALMOST did the best tactic of my career but unfortunately in failed lol.