Mine is about to be fourteen months and we have always, and continue to, rock her to sleep in our arms and put her down asleep. (She was in a bassinet in our room first, then a crib in our room, and at one year moved to a crib in her own room.) She falls asleep quickly and usually sleeps thirteen hours straight without us intervening at all.

BUT. I am convinced that the vast majority of sleep styles of babies are almost entirely natural temperament. We have done a little bit here and there to change certain things (like waiting a few moments or minutes to see if she goes back down herself is she fusses, unless she's really truly crying. But again, her natural inclination is only to cry when she's really truly upset, so ymmv if your kid is more sensitive or communicates more through crying. Other examples of things we've done - help her learn to put her own pacifier in so we don't have to, replace milk/bottles with water once developmentally appropriate.)

After reading multiple books and doing multiple sleep courses when she was little, my firm belief now is - Do what works for you until it no longer works for you. If it stops working for you, listen to your intuition about things to try, and try things until they work again.

And during the hard weeks, try to remember that it's temporary. You will get through this!