Don't worry, dear...You will get ITA before your birthday.I entered pool in Feb 2019 with CRS more than 440. Improved my score 2 times and finally reached 460. When ever I improve my score , CIC will increase their cutoff above that. My birthday is coming on Aug 13th and hence need my ITA before that.
There are some people that might be already waiting in the pool longer. even for years.
Personally, I don't think CIC purposely increase the cut off score. I think the reason why CRS cut off keep getting higher and higher is because the increasing number of high scorer entering the EE pool and a steady ITA number of only 3350/round.