idk about other phones but if u have an iphone they have all kinds you can turn on and just make sure it’s set to show people you’re on dnd. then if they go to text you they’ll see you’re working/taking personal time/etc. i have the one set up for work hours, one for therapy and yoga, sleep, i also put them on when i am doing my something else (painting, cooking, movie) and don’t want to be bothered. IMO you don’t really have to announce it and it also may not go over well if you tell people their texts drive you crazy — it might just be better left unsaid. (unless you’re getting spammed with like ten calls in a row then you probably should) i think eventually they’ll just adjust to you not being reachable 24/7. (just don’t ghost people for a bunch of days if they ask you an important question lol) i used to feel obliged to respond to everything ASAP and i’m still mostly a “good texter” but i don’t feel the need to interrupt things to respond to texts or text abt something non-time sensitive if i’m not in a mood to (outside my mom lol, i always answer her the same day) and i think most people in my life understand that bc i just am not reachable 24/7 and have that boundary. i don’t know if you can just stop people texting you a lot but i think if you reshape your response time they will have to adjust/come to terms with that