Been away for one month... what has happened game has changed

[AZDezertRat]

play mostly 1/2 6 max on Ft and a little 2/4 too.

i took a month off, played in some mtts and sngs for a break and decided last night to start playing some ring again.

I was a 4ptbb/100 winner and felt like i had a good read on most tables. well 3 hours last night and 2 hours tonight and i am lost.

Am i imagining this or am i right... blinds dont fold to raises any more, more people than ever call raises and less than half of the people that used to fold to c bets do. i almost feel the cbet is not profitable anymore. I feel like i need to tighten up more than ever and only play real premium hands and i even when i did that i still got stacked when with 3 limpers in 1/2 i raised pre to 15 with KK, still got 2 callers and on a 842 board got stacked when got all in with 89o and the 9 hit... i dont care about the hand just showing they are calling big raises with nothing..

Advice to get me from tilting please

Thanks