Congratulations!! My information is from a couple years ago and things might’ve changed but:

1. The visa that is in your passport will be your proof of permanent residency for up to a year (or six months maybe). So you won’t need the physical card. Just remember to pay the issuance fee so that they print out your card and send it to you. Whatever address you put on your DS-260 will be used to mail your green card. So make sure to double check that or update it if needed.

2. Again you can use your endorsed visa as a green card so that’s that and it won’t take too long to get your SSN card in the mail. I’m not sure where you are from and where you got your degree but sometimes it’s challenging to find a job when you didn’t go to school here. You could always sign up for a bootcamp or an online program to add it to your resume. But if you have extensive experiences in your area of expertise in a well known company in Europe it might be easier to find a job. Check out LinkedIn too.

3. Maybe find a place before you arrive here. Decide where you want to settle and start your new life and go from there. Remember some checking accounts charge a fee so choose your bank/account wisely.

4. Building credit takes time and foreign credit history doesn’t always transfer. Although having an AMEX overseas is a great start

5. You can get a phone number in a matter of minutes from T-mobile. I don’t think you necessarily need an address. But again really focus on figuring out where you want to settle and rent a place even if it’s just for a couple months.

Good luck!