I was a full time mommy for the first year and my baby wasn't sleeping well and I spent a lot of time training him. It worked beautifully finally.
If you每次係咪都要抱住BB訓著先放落床, BB loves this and may have relied to fall asleep this way. Yet it is not healthy to you, neither the BB. The BB needs to learn to sleep by himself/herself such that if he/she wakes up middle of the night, he/she cannot sleep till you hold him/her.
You got to help the BB doing it step by step. I don't think there is a good way that sure works but you may consider the following steps:
1. 抱住BB till he/she is very very very sleepy, put him down and give him the pats if he complains
2. if it works, take away the pats
3. slowly, put the baby to his bed when he/she is sleepy.
Also, in day time, after the BB milk milk, don't let him sleep but play with him
Try the below routine per sequence:
1. Feeding
2. Playtime
3. Sleeping routine (any combinations such as e.g.bathing, music, story reading, dimming the room, changing clothes, baby massage, etc...)