HELP! 6 month sleep regression

Michelle • Baby 💗 born 6/11/17 & 💗 born 8/27/19

My 6 month old has always been a good nighttime sleeper, until 2 weeks ago. Now she’s awake every 3-4 hours. I feed her and she falls back to sleep right away. I’m exhausted tho! Any tips to get her to sleep better?? She is a terrible napper too. She’s only sleeping maybe 10-11 hours/day. Thanks you.

One exhausted mama