I am a low sensi player and after playing for 2 hours ,my hand hurts (a little bit). As a result I become inconsistent. Can anyone suggest me how to overcome this besides changing my sensi ? Is there any exercise I should do before hopping...

Anyone else experiencing the same? It seems like every other game, teams stack the sites we are attacking, only check the angles you are hiding in during retake, rush you with sheriffs and only hit headshots, etc. I am Plat 1-2 btw.