my iphone is dying???

yeah dude im not even joking ive changed charger like a thousand times already bro this morning i turned my phone on it was at 85 percent after charging all night long and not only that (it was also with dark mode, notifs off and airplane mode) and said it will take more than an hour (circa 1h and 30-50 mins) of charging to get to 100 😭 PLSSS HELPPPPP