Solution for Lucky Break In Injustice: Gods Among Us
Just follow this guide.
Play with a Nintendo 3DS or something, keep losing matches, and eventually they will make you match up with people who only lose.
Then you have people of your skill playing with you.
After doing this, I got matched up with people that had 0 wins and a few losses. Kept using Death Stroke's Down, Forward + Y and Down, Back + Y against them and got a streak of 7 wins. Then it started giving me stronger opponents again and I finally lost enough again to meet people weak enough to get another win. Then I got matched with people that kicked my ass again. Finally, my True skill went to 1 and I got my last 2 wins.