I need advice:(

recently i’ve felt like i changed and very different. i look back on things i’ve said even a couple days ago and think “wow i’m such a ***** there” and i hate it, and i’ve been so sad lately bc of this and i feel like i’m getting distant, the writing kinda explains it (it’s creative writing from my mind, it’s just a way I get feelings out so it’s not my best writing so keep that in mind) but anyone have advice? :(