Overtired

My poor baby is so over tired!!! She’s almost 3 months (born 3 weeks early). What can I do for her? She’s a horrible napper (like 30 min on the dot) and I put her down within 1.5 hours of waking up. We start bedtime routine at 6- in bed by 7/7:30 and she still wakes up so often. She will sleep fine when I’m holding her. She’s swaddled, white noise and all! But now that she’s overtired...wait it out!?