I have similar problems with my 2 1/2 yr spirited/touchy son and 12 week touchy/textbook daughter. I usually put on a video for Josh right before I put Ellie down. I started EASY on a weekend when my husband was home so that I could be consistent. I put her down with a pacifier in her mouth, pat/shush, leave when she closes her eyes (which sometimes only takes about 15 minutes) After I check in on my son I go in and take the paci out of her mouth. If she stirs, I pat/shush and if she is still stirring I put it back in for 5 minutes. Is your ds taking naps around the same time every day? If their bodies are used to falling asleep at the same time every day the process should start to shorten. I also start to put her down about 10-15 minutes before her regular nap time.