I am a lawyer in CT and practice in this area of the law.  You may file for bankruptcy on your own; however, I suggest that you seek assistance from a lawyer.  A person that has power of attorney will not be able to represent you in court.  There are pro bono lawyers out there that the court may be able to refer you to that can meet with you and show you how to fill out the bankruptcy petition.  In the meantime, gather all your credit cards and obtain a copy of your credit report so that you can make sure that you are discharging all your debts.

You can file yourself.  I'm going to give you a link to a site that will explain the bankruptcy basics.  You will want to look at the information for a Chapter 7 filing; it will also supply all of the forms that you will need:  http://www.uscourts.gov/bankruptcycourts.html

Also, you can see if you qualify for representation by Legal Aid.  Additionally, if there is a law school nearby see if they have a legal clinic; they typically handle these type cases.  Finally, you can contact you local county bar association and see if they have a list of attorneys that will handle your case "pro bono (for free) or at least take your case on a reduced fee basis considering the circumstances.

As always, to find an attorney specializing in bankruptcy cases, you can refer to: www.AttorneyPages.com