I agree, it has been really rough this season for some reason. Usually I can make it to the middle of the Diamond Tier and even push Diamond 1 at least once to get the rewards. This season I have been bouncing back and forth between Gold 1 and Diamond 3. It has been pretty rough. I usually just try to do my daily quests though and I don't grind for rank that much. If I did, I might be able to get a little higher.