One time I made a comeback in the cup semi finale. At first leg I lost 2-0 away and thought that it was over, but the second leg day came and I got confidence. I changed some of my tactics to try and make a comeback. The match began, and I scored at the 3rd minuteright there I knew that I will score another goal.
At half time it was 2-0 (2-2) on aggregate.
The second half came and I scored 2 more goals to make it 4-0 and qualify for the cup final.

That was my best comeback of all time.