Hi J.. I would first have your pedicatrician look at her to rule anything out.
Secondly, CIO does not work for all babies. If there was one solution all babies would be sleeping through the night and at naps for everyone!
I can only tell you what worked for me:
I put my baby down in her crib at bedtime, and I laid down next to her...
Now obviously I cannot fit in the crib, so I put a stool next to it, and just placed my upper body down in her crib, talked to her softly, rubbed her head and belly until she fell asleep. I sometimes fell asleep too!
The first few times were BRUTAL, she cried and cried, but at least she did not cry alone. It took about 90 min the first three or four times I did it. 90 min is a long time not to give in and resort to your usual pick up, nurse, put in the car, etc, etc. So be ready if you want to try this.
Then I just needed to talk to her til she fell asleep, then I could just put her down and let her self soothe til she fell alseep. It was a process - it took much longer for naps, but only about a week for nighttime.
I've also seen moms on this site recommend The No Cry Sleep Solution. I too read it and it is a great book. I know you said you do not have time to read. But bascially she has a 7 step plan to get your little one to sleep on their own, so maybe you could read that part.
I kept getting stuck at Phase 3, and did not have the patience, energy or sanity to keep it up, so my baby did cry, but again, she never did cry alone. I was always with her.
Hope this helps!