Please help !

zerah

My baby girl is 4 weeks old qns she just won't sleep! Now I've felt with her cluster feeding her first week of life n waking up to eat every hour but she would at least sleep in between feedings, lately she usually wakes n eats stays up for 30-90 minutes then goes back down for a nap but for the last two days she probably stays up for 3 hours in between feedings n that's when she usually gets hungry again! So I'm constantly nursing her or trying to out her to sleep! She probably got in total 10 hours of sleep in the last 24 hours n I've tried everything! White noise, swaddling, a bath! Carrying her in a carrier n walking around but she seems so irritable and overtired 😢 I feel like I'm a bad mom like I'm doing something wrong! I also checked her temp to see if she night be sick and her temp was 98.5. She does have a bit of a diaper rash I put cream on it. Can that be the reason she's not sleeping?