Changed minds

So my husband and I have decided to start TTC just recently. We’ve been married for almost two years and together for four. All my life I never wanted kids. Hated kids, didn’t want to be around them. I mean, they were okay when they weren’t my own and I know moms have it rough sometimes so I wasn’t the person who rolled their eyes at the crying baby in Walmart. But I really and truly never wanted to have kids of my own and have to take care of them. I’ve had depression and anxiety and I’ve always been worried that I won’t be able to mentally take care of the child or myself. Anyway, now I’ve changed my mind and really truly want to have a child with my husband. How do I shake the concerns that I have like not being a good mom or what if I hate my own kid and really didn’t want it? I want a kid and I want to be a good mom, but I don’t know if I know how to be, ya know? Any advice please.