Losing streak but Lucky chest

I have not yet open my gold chest since my rating is 2752. Trying to win some games before opening the chest and the new focus will be diamond chest. Unfortunately, I was 11 losing streak and drop as below 2400 rating. It was a very frustating moment since i can't reach diamond leauge. I still played along climb upto 2700 rating then back to 2500 rating. I used up all my 50 energy and reach only 2617 rating.
With this frustating game. I open my gold chest and luckily i got 2 CL packs.Now, i will wait 3 hours before my rental ends and play again hoping to reach diamond league.

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