HELP 3 month old will not sleep in crib

Hi all
Let me give you a brief background. My baby would not sleep the first 3 weeks of her life. Thankfully my mother figured out that she had gas. So we fixed that problem by me not drinking any milk and releiving the gas. OK at the SAME time my mom took nighttime duty for 3 nights to give me a break (AAAAHHH) well mom had the baby sleep in her carseat. The baby slept for 6-8 hours and has ever since then.  Since then my baby will not sleep in her crib....and honestly I voted for more sleep than to fight with my baby whom I fought with for the first 3 gassy weeks of her life.  I have transitioned her to NAP in her crib during the day but her naps (honestly) stink. She is up an hour, down an hour up and hour down an hour. She has always been a bad sleeper.  Then at night we do her routine that we have been doing since week 4 (Baby is now 11 weeks old). Its bath, CD and play, feeding, put her to sleep in the car seat awake and give her the pacifier. She goes to sleep and will wake up 40 mins later crying. We go in after 5 mins to sooth her, then if she crys again we give her 6 mins  then 7 etc. It usually take us about 2 hours to get her down. OK so I was thinking that she is getting big enough to sleep in her crib since she naps in the crib. So tonight we did the routine (bed, CD and play, Feeding) and I put her in the crib awake and turned on the Peek a boo Aquarium thing I got from Target. my baby LOVES this thing. she watch it and drifted off to sleep with no issues. Well she woke up 40 mins later (just like she does in the carseat) and so I did the same routine of waiting 5 mins, 6, 7 etc before going in to sooth her. Well I got up to waiting 15 mins and the baby is crying NONSTOP. The only thing that sooths her is if I turn on the aquarium thing but she crys when that is done ( about 12 mins later).  Needless to say I asked the hubby to get the carseat out of my car. Baby is in the car seat right now sleeping like an angel.  I want to transition her now before I go back to work (on 03/16)
OK SO HERE IS MY QUESTION
What did other moms do to transition their baby from the carseat to the crib? PLEASE dont tell me to elevate the mattress unless that worked for you. My baby naps in her crib with no problem (even if its only an hour nap..she has always been a bad napper) Is this just a phase my baby will grow out of and she will let me know when she is ready for her crib? Is there a specific technique any of you other moms have done to get her used to her crib? Someone said to buy another chaning table and put the baby in that since it kind of cradles them. Please give me DETAILS too.  When did your baby get out of the carseat? How long did it take (1 week, 1 month, 1 day etc) and MOST IMPORTANTLY  what did your baby do during this transistion (cranky, cried for 15 mins, or just fine and slept better)
I feel like such a crappy mom because I feel like I cant understand my baby. I feel like she hates me because she crys at everything when I try to change her routine up.(stubborn just like daddy :)

Sorry for the long post. I really want my baby to  sleep well. Her crib looks so much more comfortable than the carseat...PLUS I am worried about a flat head.

[AnnieBrooke]

Try putting the carseat into the crib with sleeping baby in it.  That will get her more used to sleeping in the setting of the crib.   Each day or two, lean it back a little bit, so ultimately she is lying rather than sitting.    

[Tanker Chic]

Mine was the bouncy seat and swing... I would just let him fall a sleep where ever he was comfortable and then move he in his sleep... I also pushed the paci... at first he wasn't interested, but I kept offering it and now he loves it.  When he was that young i gave it to him whenever he wanted it.  Now that he is older (1yr).. i just give it to him in the crib...

also, do you swaddle? My son never did, but since she likes the feel of the car seat, maybe she will like the confinement of swaddling.  

[law0130]

Thanks for the advice. Anyone know how to lean back a carseat as stated in the first post?

[AnnieBrooke]

Prop it firmly and wedge it in with pillows, below and to the sides.  A 3-month-old can't move forcefully enough to shake it loose if you wedge it in carefully.  Just don't let any part of the pillows get up around the level of the baby, keep everything low enough so it doesn't interfere with air flow to the sides of the car seat and can't be grabbed by the baby.  (I assume you strap the baby in.)