Beginning to panic that I'm not ready...

I'm 23 weeks today and I'm really starting to panic that I'm not ready!? I have hardly bought a single thing and people keep asking me what I've got and literally nothing!

I think it's because I haven't felt my baby kick yet like the reality isn't there? (My placenta is anterior)

My boyfriend and I are so chilled about it, but the thought of birth is terrifying me and I'm starting to panic that I'm not ready for a baby :(

I can't imagine myself looking after something and am so scared to be alone with the baby :(

Is this normal to be feeling this way ?