not sure i'm best placed to advise given my wife is always on at me for how long i spend on the phone.
however, i will 100% hold my hands up and say i was addicted to Twitter. in an old job, i wasn't working too hard, and i used to spend all day on Twitter. at some points i would tweet 100+ a day. In the end, i went cold turkey, deleted it. A few times i've fallen off the wagon, i think twice in 3 years, but quickly remember why i dont like it and deleted it. I'd also get messages saying "oh you got time to tweet but can't whatsapp back" etc.
I've seen friends in the pub (pre-pandemic) just checking Twitter and you can see the addiction. A few things i suggest:
1) take a break from Twitter by removing the app, and set yourserlf a goal of no checking twitter for a week . it's a bit of a challenge, but give yourself a date saying "i'll download again on Sunday" or something. You don't lose your account obviously, just removing the app off the phone. Takes willpower though believe me.
2) the metrics of screentime are on your phone but to be honest, it doesn't help me personally, give it a try and see what you spend on there but dont get too bogged down with it
3) what are your interests? for me its sports, politics, current affairs, so find Podcasts on those (happy to recommend some) and try and consume your information that way for the week. that way, you're still in touch with the goings on of things and discussions, but obviously on a more palatable source than Twitter
good luck, it's not easy, and i do sometimes feel like i miss the odd thing, i still can check twitter via open source pages (i.e. if i go to Twitter.com/spursofficial) but i don't go and check things and i can tell you, i feel much better for it. Twitter is a poisonous place, i really believe it.