Mommies, hello ? Tell me about your babies ? At what age did they star…

Mommies, hello ? Tell me about your babies ? At what age did they start rolling over, at what age do they hold their head well? What were they able to do at 2 and a half months old? I have a question because we're almost 2.5m, but in a vertical position she holds her head back, I don't know if it's normal or not, and lying down she doesn't want to lie, she holds on but freaks out a lot.