Noob here have question about my build

Hi guys, I am following Fubgun's deadeye ice shot character. I am a total noob here. I dont know why but ever since I switched to iceshot, I have never been able to freeze a single enemy. Could somebody please tell me why that is? =(

My Character: https://poe.ninja/poe2/profile/Kriger1102-2362/runesofaldur/character/DadAyyyyE