Advice on Transitioning

Yes, I accidentally co sleep with my LO since she was born which may make this difficult, I understand. But I am willing to work on it! Because I have another coming in 3 months and mama only has a queen size bed 😅 Lol which won't be able to fit me, my 2 year old, one year old and NO I do not plan on co sleeping with the new baby! I have a bedside crib I want to order for her.. anyway!! My Lo (one year old ) is very clingy on to me. She has some separation anxiety sometimes and always only falls asleep with her hand on my chest or her face planted in my tits. I bought a pack n play off marketplace & am willing to start the new year off with some goals. Tonight went, eh ok. She did scream for 5 mins, but eventually I got her to calm down while bending over and patting her to sleep. Is there anything else anyone recommends? We tried a crib and that was a complete worst night ever. It eventually broke anyway so I threw it out. But yeah, any advice would be lovely!