Start sleep training and self soothing training. There are many methods you can read up on, whether it’s the no tears method, cry it out method, check in method, etc. It’s tough initially, but you need to persist and be consistent. Give it 1-2 months and the success rate is usually high if you don’t give up:)
Train not easy initally but still able to do it. You can make your baby sleep in yao lan and carry your baby out placed on bed
Mummy J