Bassinet sleeping

I am having such a hard time getting my newborn to sleep in the bassinet. I feed her, make sure she has a clean diaper, and swaddle her, but after I lay her down she is up again anywhere from instantly laying her down to 15 minutes later. I have gotten her to sleep in the bassinet for long stretches but they are few and far between. Any advice. Right now I have been getting sleep by letting her fall asleep on my chest or next to me on the couch. I know it’s not recommend but a mamma needs sleep too. Please don’t shame me, just looking for advice.