i think the most important thing is to get comfortable at talking. stutters for me at least is heavily influenced by my mental. the less i care and more comfortable talking to other the better it gets. at first it can be like hell, but don’t lose faith. It does get better, there’s no instant cure. there’s still better day and worse day for me. i have one technique that really help, take a lung full of breathe and let the air from the mouth while also talking. but technique only can get you so far. getting comfortable talking to other is the key. it’s hell at first i know but you need to take the step. u don’t need to put ur self out there just now. take ur time to build some courage first, when it’s time it’s time. good luck.