After marriage, you may apply for an Employment Authorization Document (I-765), drivers license and social security card. All three will be needed to hold virtually any job in the U.S. Of course, it takes time for these applications and petitions to be processed. Therefore, generally speaking, factor in a waiting period of 3 - 6 months before you will actually be authorized to work in the U.S. after your marriage.
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No. You have to go out and start over.
Yes, you can renew your passport before it expires.
Yes, you can renew your visa before it expires.
You can renew your passport at any time before it expires.
Yes, it is possible to renew a passport before it expires.
Yes, you can renew your US visa before it expires.
Yes, you can renew your driver's license before it expires.
You can renew your passport up to 5 years before it expires.
You can renew your passport up to 5 years before it expires.
A check is typically good for six months before it expires.
A check is typically valid for six months before it expires.
If you have to ask whether you love your fiancee or not then you need more time before committing to marriage. Either postpone the wedding or, break up and make sure you are not in love with love or that you are just not getting cold feet.