someone please help

it's 12:42 a.m and im up crying cause my daughter is 2 yrs old and still not talking. she babbles all day long and say hi every question every answer is hi and i'm just so fustrated cause i do everything they tell me to I go to pt/ot she just started speech therapy, she even has a teacher come to the house and she goes to centerbase and there has been no change. Her attention span is like 5 seconds long. when shes at school its so difficult for me when i see her surronded by all those other kids who are so much more advanced then her, she doesnt know how to play with other kids and they look at her like something is wrong with her when they try to talk to her ar just play with her she doesnt respond in no kind of way she just runs around getting into everything with no regards to what she's doing. She's so clumsy just last wk. she fell off the porch and scraped her nose up and then 2 days later she turns around and falls and hits the rail on the bed. I just broke down crying cause nothing seems to be right im afraid that now that she's in school and so clumsy at home that they may mistake all her injuries for abuse and I just feel so lost my daughter didnt walk until she was 21mos my nephew is 9 mos and he just started walking. my other nephew is the same age as her and i'm sad whenever he's around cause everybody is always ohh ahh at all the things he does and say. I feel like she might as well be 9 mos again. WHY WHY WHY i'm so sick of this how does a 23 yr old be put in a situation like this. when I found out I was pregnant i was soooooo happy I love my daughter with every fiber in my body but sometimes I wish I just never would of gotten pregnant. before i had her I was a medical assistant for a cardiologist for 3 yrs and now i've had to quit my job and support her and no income is even more stress i just wish things would get better for her cause she trys so hard but it's just not her time I guess......................GOD PLEASE HELP ME. I can't stop crying or typing as soon as i'm about to end this another thought comes to mind. Why is it that while i was pregnant I did everything i was suppose to but crack heads and all the other dug abusers do drugs while there pregnant and try to do harm to there children why do they get to have the healthy babies souldnt they be the ones enduring all this pain...................................GOODNIGHT i'm done i'm all cried out. I really just needed to let all these emotions out.