My daughter has no friends please help.?

My daughter is 3 and 5 months and she has no wee friends. She has been going to play centre since the beginning of the year but has not been invited on a play date and infact the other kids are a bit stand offish towards her. Her teachers say she keeps them on there toes and when i arrive to pick her up the kids tell her im here because they are used to her screaming "my mums here" with excitment when i arrive. I want her to have a friend, she is an only child and i spoil her with my attention because her dad isnt around and i have no one not even friends. I dont want her to grow up to be a lonely old hag like me with no friends. She is a handful though and i no that at times she can be very naughty and dis respectful. I no they say that your children are a reflection of yourself, so all i ever feel is guilt over the fact that alot of people think she is a little shi#. I dont no how to change her. I try but it somehow seems ingrained in her to be, well her. She is strong minded and does not follow others she is loud, outspoken and somewhat disrespectful towards adults but at the same time she is caring and happy go lucky. What can i do to make people like my daughter as i dont want her to feel the pain of being left out when she is older. I no i sound a bit psycho over this but it really breaks my heart because i think she doesnt care about making friends cos i dont have any and dont no how to make any.