Terrified to be a mom

My husband and I have been married for a year and we both feel like we’re ready to start our family... but I’m terrified. I struggle with anxiety and depression and I’m worried I’m going to be a terrible mom. I don’t know how to be a parent! I don’t know how to take care of a baby! I’m so scared I’m not going to be able to provide my kids with everything they need! I’m not even a mom yet and I already feel so inadequate. But everything inside of me just aches to be a mom. Does that mean I’m ready to be one? Are all these feelings normal?? Please give me advice/comfort!