The charges are something a prosecutor will decide. I would expect felony charges.
Whether or not you will go to jail depends primarily on your prior record.
Hire a criminal defense lawyer.
i forged 9 checks belonging to my mother she just filed a police report the total amount in checks was 6000.00 and before she filed the report i made payments to her .what i need to know is the penalty for first time offence of this nature. here in california