I ordered food online and gonna get it from the public mailbox on may 20th by tying my baby in a…

I ordered food online and gonna get it from the public mailbox on may 20th by tying my baby in a cloth to my back and putting her mask on I'm practicing now how to walk with her never done it before but aeen women do it any advice? It feel easier then a stroller so I can take the cart to hold the package and pull it up the 5th floor without leaving baby downstairs