I have also been making an effort to work on her ABC's. I have stapled foam puzzle ABC's on our basement wall and each day I try to do those with her. She can now recognize P and she knows "P is for Potty or pee pee. E, M & N she can also recognize, but not consistently. I try to keep it fun and when she is done with it we move to whatever she wants. We also play "What is D for... " and she will answer by saying the D sound or saying Daddy. She can do that for a few letters.
I tried doing shapes with her but she seems more into the ABC's for some reason, so that is why I chose them. Even colours she isn't too into.
She is saying more and more words now and can clearly say "mommy" instead of "mama". I think she is starting to catch up with her language. Although I don't think she was ever behind... just on the lower end of normal. The other day she even said "mommy poo poo", which was a big deal since she never has put two words together like that.
I am trying to not underestimate what she is capable of understanding and learning, but at the same time I don't want to push her or set unrealistic expectations. I just want to create an environment were she can thrive.