lanky1980

First of all thanks to those that host this forum. I have long been a guest on here but after my N-400 interview yesterday i am in need of some advice.
On my N-400 application i had stated that i had never registered to vote, nor had i ever voted. I believed this to be true as i have no recollection of ever do so.
At the beginning of the interview the IO asked why i was registered to vote in my County. I told him i was unaware that i was. He conducted the interview and issued me with an N-14 and asked me to go to the County Clerks office to see what i could find.
The N-14 asks you to return to the IO a voter registration form, proof of removal from the voter register, and your voting record.
I went to the courthouse and they produced a voter registration form that i had signed in March 2006 at the DMV. It clearly states that it is for US Citizens only. I was shocked that i had been so stupid as to sign this, and also that i had no recall of doing it.
However, i got a copy of this, a copy of the form stating i was no longer on the voting register and a copy of my voting record that showed i have never voted.
I drafted a letter to the IO explaining all this and my regret at this huge mistake i had made.
Other than this i am a LPR from the UK married to a USC, been an LPR since 2003, have a 20 month old child and another on the way, always employed, always paid taxes, clean record, not even a parking ticket.
My question is this: Should i return the forms along with my letter of regret and hope for the best? I also have a sworn notarized statement saying i signed this form in error and with full regret.
Do i need to Lawyer up at this point? I realize that by signing the form i could be deported.
Or could i withdraw my application and reapply with all this information attached?
Many thanks in advance for any advice given