Sleep cycles

Somebody help me. My baby only naps for 30 minutes. That's it. 30 minutes less and certainly no more. People tell me it's because she doesn't know how to link her sleep cycles. She's 10 weeks.

Please tell me when a baby learns how to do this!!! I know all babies are different blah blah blah. But can I get a roundabout number??? These 30 min naps are killing us...she's overtired allllll the time! I'm a very stressed out mom.

HELP ME!!!!!!!!!! 😭😭😭😭😭😭😭