Consistent wins? A game theory

I've been winning pretty consistently recently. I had a few losses here and there though I blame some of my own plays.

I think the key to winning streak is to simply not play if you don't have a free chest slot. So if all 4 of your chest slots are taken, don't play clash royal. This applies regardless of crown chests. Only play clash royal when you have a free chest slot. That's how I have been playing for the past 2 weeks. Only playing when I have a free chest slot (win to get another chest).