New friends

Ok so this may sound really pathetic, but Iv always struggled to make decent friends, I'm now 25 and not got any close friends at all,  I'm trying to change this as I find it really depressing and want to set a good example for my daughter and would hate for her to ever be in this position. So I'm after any advice on where I could possibly make friends. I tried when my daughter was born at playgroups and baby classes but there weren't many mums attend so I didn't really get chance to speak with any and then I moved house to a different area and now that my daughter is coming up to 3 years old I feel she's too old to go to any of those classes that would enable me to interact with other mums. I'm hoping once she starts nursery in January this will help. All the friends I grew up with don't have children and I found they all seemed to jump ship when my daughter arrived and never seemed to care since