I have 5 siblings. I don’t know my family

[eRobin]

4 of them are my mothers, one of them are my dads. I only grew up with one of my half siblings, never met the rest of them. I don’t know them. I secretly judge both of them heavily for it.
I don’t even know my own family, because I also never met them due to not knowing who they are as it’s been kept from me.
I seriously resent the fact that I only had a single mother and half brother growing up , didn’t know any of my other family members. All the other children I knew at least had grandparents, aunties and uncles.
the fact that I am autistic and can’t make friends has made me even more resentful that I don’t know my family.

Is there any way you can trace them? But be warned, sometimes family isn't all it's cracked up to be.

No as my mother changed her full
name before I was born so I don’t know what the family name is

Have a word with you local registry office, they should be able to advise how to track your mums original surname