Am I a bad mother?

I heard everyone tell me how much I would change after having the baby when I was pregnant, and I constantly hear other mothers talk about how they are a completely different person from before they had kids. But my baby is a month old and even though he has my whole heart and I would do ANYTHING for him I did not dramatically change after having him. I still have the same mind set, I feel the same way for my partner, I’m still happily seeing friends, and I don’t feel this huge change.

I almost feel like I’m doing something wrong? And just to be clear I don’t feel unattached to my baby or anything like that, I just don’t feel unattached to the world either. I’m 18 so I thought maybe my age could factor into this.

Overall me, baby, and my SO are doing great. But I’m still waiting for this huge change that’s supposed to happen....