What’s wrong with my baby?

So my son is about to be 8 months old and lately he’s been napping for only 30 minutes if even that.. He’s been waking up every 1-2 hrs just like how newborns do. And is ready to start his day at 5 am like wtf 🤦🏻‍♀️ like tonight I put him to bed at 7:30 and he woke up at 8 sitting and standing and ready to play like wtf. It’s now 9 and he’s BARELY going back to sleep because my grandma is literally sitting there patting him and shushing him she’s already been doing that for like 30 minutes . I just wanna know wtf is wrong with my baby??? I swear no other baby his age acts like this. I’m about to go crazy with the lack of sleep I’m a single mom. I don’t know if he has adhd like my baby daddy or what. But I know this isnt normal and there’s something wrong like I literally gave him a bath, gave him a full 8 oz bottle, gave him Tylenol, cough medicine, and his antibiotics (which he’s almost done with) and he STILL woke up within 30 minutes. I’d just like some time to myself and to get some fucking sleep but I don’t think that’s ever gonna happen. Like it irritates me so bad when people tell me “this won’t last forever” because clearly it is he’s only slept thru the night 3 TIMES in his entire life... and babies should be sleeping thru the night by 6 months old (that’s what his dr said) like I just don’t understand why he’s so bad like why does he sleep so horrible? I don’t think any baby his age is this bad 😢