I am a new immigrant. How long will it take me to receive the green card and social security number from the immigration office?

The social security number is not issued to you, but you have to apply to the social security bureau where you live.

You have a green card number. You can apply there.

The green card should be issued to you in about three months.

You are a green card, and you will enjoy the green card treatment after going to the United States for half a year.

Tuition fees have come down, and community colleges are very cheap (compared with foreign students)