Don't give up..
AnuD,
Make sure you hang on till you cross 180 days get over with your current employer by even taking Loss of Pay or with an understanding with your employer. Look out for a job asap.
There were a lot of people like you who got GC and you are not the first one. Try hard, be optimistic and don't give up. You have come a long way and very close to 180 days of I-485 and you will be soon eligible for getting GC under AC-21.
Don't plan on going back yet. Make some money while constantly trying for a job. Take help from all your friends and others and use all your sources. Post your resume on all job sites like dice, monster, hotjobs etc. Go to google and look for job sites.
You never know.
Good luck to you.