Considering sleep training

Our baby is 13 months old right now, we never sleep trained as she was a decent sleeper and worst case if she woke up at night, giving her a bottle or patting her a few times was good enough to put her back to sleep.

She was used to sleeping in her crib but we traveled for a couple weeks and had to co-sleep and now she’s completely used to co-sleeping and hates her crib.

She has moved down to a single nap mid day for about 1.5 hours and sleeps for 10 hours total in then night with at least couple of times where she wakes up absolutely screaming.

She also resists going to bed, putting her to sleep takes almost an hour with her crying a lot initially and resisting our attempts (at contact sleeping/rocking etc.) we’ve tried all usual routines but this pattern has gone on for about 6 weeks now. And we’re at a point where she won’t even go in the crib without crying. Should we sleep train, will it work, how much will she cry, we’re very confused. Please share some tips or advice.