Anyone co-sleeping/ bed sharing with newborn/baby and plan to stop?

Basically what the title says. My second daughter is 11 weeks, so almost 3 months old. She has hated the crib and bassinet since about 3-4 weeks old. I tried and I tried… but eventually I succumbed to sleeping with her because it was the only way I was getting any connected sleep at all. First in the recliner and then we moved into the bed using Safe Sleep 7. While I do not judge anyone for co-sleeping/ bed sharing, I will admit I’m not interested in doing this for the long run. Naps are pretty much the same way- contact napping on me or sleeping next to me or naps on the go in the car seat. If I try to have her nap in the crib it’s 45 min tops. Then I end up ruining the nap because I cannot get her to go back to sleep.

Any tips or ideas for transitioning? I’m using TCB (Taking Cara Babies) and so far it hasn’t worked too well for us. She turns 3 months on 2/22 and that was when I thought I would try to start pushing the independent sleep more. I haven’t seen the point in the fourth trimester. But I don’t want this to become permanent.

For what it’s worth- the main problem is she won’t STAY asleep in her crib. She will sleep maybe one sleep cycle and then wake up. I don’t feel comfortable letting her cry it out as she is so young.