Baby won't sleep in his cot

Eesha 🦋

Does anyone have any advice on what I can try to help him feel safe in his cot (bedside cot)... He is almost 5 weeks old and only sleep being held. He wakes up as soon as you drop him alot of the time

I think he is too little to leave him to cry it out. Will just appreciate some advice on what I can do.