Getting a puppy, after reading this sub I’m scared 😂

I’m getting a puppy in two weeks. This will be my first puppy. I have a dog that I adopted when he was two and I think I’ve been really lucky with him being somewhat of an angel. He is the same breed as the puppy but now I’m worried I am underprepared. I work from home with an occasional in office meeting. I plan to do training with a professional once he’s more of age. Can anyone help over educate me. I’m a mom so I’ve taken care of newborns and my older dog but I didn’t realize how much went in to raising a puppy and I’m doubting my capabilities.