Out of mummies bed into his own

So my little boy is now just over three weeks old,  during my time in the hospital I didn't want to leave him in the bed they provided. I just couldn't stop holding him and I wanted him close to me always, after returning home from the hospital I then had him stay in my bed next to me, for three weeks it has been like this. I put him his that hospital cot about twice!

 
However in the last couple of days I have tried to get him into his cot, so I can have my own bed back and he can make use of his, although it's lovely to cuddle up at night and sleep with him in my arms it's better for the both of us if he stays in his cot. If you are struggling like I did to get him to stay on his own don't worry it just takes time, you have to really be determined to make it work and just keep trying. For about four nights I have had to keep putting him back after each feed, although it is much easier to just let him fall asleep next to me after breastfeeding I am going to try my hardest to place him back in his cot.
I moved his cot right next to my bed, so he can see me at all times and I don't have to go far to put him back, I also have placed a worn top of mine under the sheet so it smells of me. Alongside the thins mentioned above I have had to give my son a dummy, although I never wanted to at the beginning I needed too give him one, this is due to the fact he was using my boob as a comforter. He wouldn't be drinking he would just keep it in his mouth, which meant every time I took him off and put him into his cot he would wake up and cry. The dummy has meant he stays in his cot and falls asleep alone without me holding him or cuddling him, for some people they may like sharing their bed with the baby however I found I never really sleepy properly due to the worry of rolling onto him or something.
I should have listened to my sister when she went on at me about putting him in his bed in the hospital and letting him learn to be on his own, but I decided not to listen as I just couldn't put him down. The cot looked so big and cold and he was so tiny and just wanted to be snuggled, but now he is over three weeks I feel like I know he is going to be ok, that he doesn't need to be in my arms all the time and I feel it's safer for him in there.

My best advice if you are trying to get him into the cot is using a top or something that smells of you and placing it in his cot or under the sheet, a dummy if you find he uses your boob for comfort, I also give him formula just before bed as it is heavier on there stomach so he sleeps for longer and then after that throughout the night I breastfeed him. I must confess that I also place him on his tummy to sleep, I know you are advised not to by professionals but my mum did it with all three of her children, my sister did it with her son, and I'm doing it with mine and he sleeps for hours. He hates being on his back, I am not saying you should try this, you have to do what you feel comfortable with as its your baby, however I have found this works best for my son.