Someone helpppp meeeeeee!!!!

So basically what's going is my LO will fall asleep, we attempt to put her down only for her to wake back up and then we have trouble putting her BACK To sleep. We've made sure she was good and full, diaper is dry, she's in a deep sleep, given her the pacifier to soothe herself and go back to sleep but it doesn't work. She will sleep up to 4 hours at a time if she's next to my husband or I but when it comes to sleeping by herself, she won't sleep very long anymore. This has been going on for about two weeks now. She was doing great at taking 2-3 hour naps in her crib and even sleeping in her bassinet at night but not anymore. What to do? I understand she's in a leap but I need her to sleep independently because I can lay down ALL day. 😩😩 I know for a fact she is tired based off how tired her eyes are and how fussy she is at the end of the day 😔I'm stressing out because I know she needs to SLEEP!