My newborn doesn’t sleep

What the title says. I have read everything about wake windows but it is IMPOSSIBLE to get her to sleep in less than two hours 😭 she is 4 weeks old and has been the same pretty much since born. I’m exhausted 😭 but, most importantly, worried that she doesn’t seem to sleep like a normal newborn (?). Sometimes I get her to sleep in two hours, sometimes she needs as much as 5 hours 😭 I try everything: feeding her, rocking her, giving her a bath, feeding her again, singing, shushing 😫 she just doesn’t sleep, or sometimes falls asleep but wakes up the second her ass touches her crib 🙃 To be honest, I feel like a bad mother, but I swear she just doesn’t sleep 😔

Just wanna know: will this affect her in some way?