I need to know!

Im 24 weeks & started panicking about baby.. like I seriously don’t know anything about babies.. how to bath him how to feed what i can & can’t do etc.. yesterday i talked to my friend who has an 8 months old baby & she said she had a baby nurse living with her in the first 2 months.. so this just even scared me more.. she said i will need help too! I don’t want my MIL to come in the first 3 weeks I wouldn’t feel comfortable her being in the house 24/7 bc she doesn’t live here so once she comes she will stay with us for like 3-4 weeks but not the first 3... i wanna figure out things I thought on my own but do I really need a nurse?? My husband will stay at home with us for the first 3 weeks is thar enough? Also where did you learn about babies from? Books? Movie? Youtube? I feel lost:(