US Immigration from Ghana

Receive an email with our case number. Is there an additional letter that we're looking for that's gonna actually say welcome letter or can we just go in and start the application process for the Visa what are the next steps when Do we pay the fees and get a check list of documents needed? I'm just trying to get the steps in order will the latter give us an appointment date or we go online creating application pay the fees and then choose an appointment date I'm all over the place?

I have my interview in a couple of weeks , I need some interview tips and I would like to know what kind of questions would be asked about my co sponser

My sister won DV2022,We applied for the DS260 she and her husband in September 2022. We are waiting for the email to submit documents and schedule the interview till now.

Did we miss anything? Anyone is same boat?

Husband (a green card holder) filed for me and case is at NVC. We had a newborn and added him to my application at NVC. Now husband wants to naturalize under the 5year rule. Should he petition for our son separately at USCIS as he s still a green card holder (I heard that takes long) or wait till he becomes a USC before petitioning for our son. Thank you.

Help please im trying to figure out how to register for the courier service in ghana for our interview coming up please help on how to get it set up