Step 1 is for your wife to establish “intent to return” and come up with some kind of permanent US address. A family member worked for us. She needs to be up to date on taxes, open a bank account, transfer assets, get a state ID or drivers license, register to vote.
They dont just hand out green cards. The USC sponsor needs to demonstrate full intent to establish residency and permanent ties to the US or you’ll get sent back from the interview until she does.
Then she needs to file a petition for you.
Is your little one also a USC? Might need petitions for both of you.
Next she needs to come up with a way to sponsor you. She either needs to park about $100k in easily accessible assets in the US or she needs to have a job and make more than minimum income to sponsor you or you need a joint sponsor in the US.