your sister or online friends/realf riends can help you if you will be fully focused you wont stutter as much i know from myself i stutter when i am focused on speaking and playing video game then just my mind goes like i say something do a mistake in that word and repeat my self or just i think and i say do i think and say another do and i start the sentence i feel like your friends should help you get over it just helping you trying to find when you really stutter and you can fix it by speaking more and more i think i know i had some days with bad sleep and i was speaking so bad then good days when i wont even notice i stutter and if you want to improve your mindset just speak slowly itss the best you can do noone cares irl if you say something in 2 seconds or 2,5 seconds it doesnt matter but for me in videogames it matters and i stutter cause i am focused more on playing the game than speaking hope this make sens for you i am not that good english man