I want to play minecraft, but i'm TERRIFIED of mobs. Any tips on how to not instinctively close the game when i hear a sound?

I want to play minecraft, but i'm TERRIFIED of mobs. Any tips on how to not instinctively close the game when i hear a sound?

Added (1). example: today i was admiring a turtle when i heard a witch laugh and i flinched so hard i nearly fell out of my chair.

Added (2). thanks for the answers, yall!
i've already tried peaceful, but i get pretty bored because it takes out a huge element of the game. Iil be sure to try /gamerule! That sounds perfect!

If the mobs are that scary for you then I recommend playing on peaceful mode, this will stop hostile mobs from spawning however it does also prevent you from needing to feed yourself.

If you're playing on PC then you can do /gamerule doMobSpawning false this will stop mobs from spawning while keeping the hunger mechanic.

You can set the game to Peaceful mode.
No creatures at all.

Set the game to peaceful. This mode has no mobs (other than harmless animals like cats or sheep etc).