It took several months to get my daughter on a sleep schedule. We started working with her to help her learn to go to sleep onher own- at about 4 or 5 weeks old.
My first tip - is buy the book healthy sleep happy child. The author is a pediatrician. It is the best child care book you can have.
your son has to learn to put himself to sleep- in the beginning we would lay my daughter in the bassinet with her pacifier.. and she would turn her head over and we kept putting the pacifier back in her mouth... eventually she could use her own hands to put the pacifier in her mouth.
It will take time for your son to learn to be agood sleeper. I wold not get him used to sleeping in bouncers or car seats or the like. If you want him to be agood sleeper- he needs to learn to sleep in a bed. We always respected my daughters need for sleep- I did not run errands when she needed a nap- I put her to bed and we did an errand when she woke up-
My duaghter never slept in car seats or swings or chairs. She still wont sleep anywhere but her bed... So we did struggle getting her to nap on a airplane trip- but overall we want her to sleep in her crib. and she does.
Your son is young and he cant comfort himself to sleep yet- you will have to stand byand pat his back and hold the pacifer or whatever it takes to get him to sleep.. but as he gets older he will learn to put himself to sleep-
but buy the book- it is the best thing I ever bought.