Congratulations on your daughter, and I'm so sorry for your loss of her Although I haven't experienced such a loss with a toddler, I would say that it would be good for you to accept any offers of help you can. For you to rest and recuperate physically and to go gently. Be patient, grieve, be angry feel what ever you feel don't try to 'cope', itms.
You will learn to live life the way that it is now, but it will take time to learn how.